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<h1 class="docs">Bibliographies and references</h1>

<div style="width: 75%; margin: auto;">
<ul class="no-enumerator">
  <li><a href="#intro-ref">Introduction to bibliographies and references</a></li>
  <li><a href="#tutorial-ref">Tutorial on <kbd>refer</kbd> usage with mom</a>
  <ul style="margin-left: -.5em; list-style-type: disc;">
    <li><a href="#db-ref">Create a <kbd>refer</kbd> database</a></li>
    <li><a href="#rcommands-ref">Insert a <kbd>refer</kbd> block</a></li>
    <li><a href="#placement-ref">Tell mom where you want your references (if footnotes or endnotes)</a></li>
    <li><a href="#accessing-ref">Accessing references in the database</a></li>
    <li><a href="#fn-en-recipe">Entering footnote/endnote references</a></li>
    <li><a href="#parenthetical">Parenthetical insertions</a></li>
    <li><a href="#bibliography-from-embedded">Generating a bibliography from parenthetical insertions</h4></a></li>
    <li><a href="#bibliography-recipe">Generating a comprehensive bibliography</a></li>
    <li><a href="#invoking-ref">Invoking groff with mom and <kbd>refer</kbd></a></li>
  </ul></li>
  <li><a href="#mla">MLA (Modern Language Association) style</a>
  <ul style="margin-left: -.5em; list-style-type: disc;">
    <li><a href="#ref-styles">Types of references (endnote, footnote, or embedded in text)</a></li>
    <li><a href="#parenthetical">Inserting parenthetical references into the text</a></li>
  </ul></li>
  <li><a href="#database">The <kbd>refer</kbd> database</a>
  <ul style="margin-left: -.5em; list-style-type: disc;">
    <li><a href="#database-intro">Introduction</a></li>
    <li><a href="#database-rules">Rules</a></li>
    <li><a href="#fields-quick">Quick guide to field identifiers (%A for author, %T for title, etc)</a></li> 
    <li><a href="#fields-specifics">Field identifiers: specifics, usage and examples</a>
    <ul style="margin-left: -.5em; list-style-type: square;">
      <li><a href="#ibid">avoiding ibid, idem and their ilk</a></li>
    </ul></li> 
  </ul></li>
  <li><a href="#index-ref">The bibliography and reference macros</a>
  <ul style="margin-left: -.5em; list-style-type: disc;">
    <li><a href="#biblio-control">Bibliography control macros and defaults</a></li>
  </ul></li>
</ul>
</div>

<h2 id="intro-ref" class="docs">Introduction to bibliographies and references</h2>

<p>
Mom provides the ability to format and generate bibliographies, as
well as footnote or endnote references, in MLA (Modern Language
Association) style.  She accomplishes this by working in conjunction
with a special groff program called <kbd>refer</kbd>.
</p>

<p>
<kbd>Refer</kbd> requires first that you create a database of works
that will be cited in your documents.  Once that&#8217;s done, special
macros let you briefly key in references to entries in the database
and have mom format them with respect to order, punctuation and
italicization in footnotes, endnotes, or a full bibliography.
</p>

<p>
<kbd>Refer</kbd> has been around for a long time.  It&#8217;s
powerful and has many, many features.  Unfortunately, the manpage
(<kbd>man&nbsp;refer</kbd>), while complete and accurate, is
dense and not a good introduction.  (It&#8217;s a classic manpage
Catch-22: the manpage is useful only after you know how to use the
program.)
</p>

<p>
In order to get mom users up and running with <kbd>refer</kbd>,
this section of mom&#8217;s documentation focuses exclusively, in a
recipe-like manner, on what you need to know to use <kbd>refer</kbd>
satisfactorily in conjunction with mom.  The instructions are not to
be taken as a manual on full <kbd>refer</kbd> usage.
</p>

<p>
If you&#8217;re already a <kbd>refer</kbd> user, the information
herein will be useful for adapting your current <kbd>refer</kbd>
usage to mom&#8217;s way of doing things.  If you&#8217;ve never
used <kbd>refer</kbd>, the information is essential, and, in many
cases, may be all you need.
</p>

<p>
I encourage anyone interested in what MLA style looks
like&mdash;and, by extension, how your bibliographies and references
will look after mom formats them&mdash;to check out
<br/>
<span class="pre-in-pp">
  <a href="http://www.aresearchguide.com/12biblio.html">http://www.aresearchguide.com/12biblio.html</a>
</span>
or any other website or reference book on MLA style.
</p>

<div class="examples-container" style="margin-top: 1.5em; margin-bottom: 1.5em;">
<h3 id="tutorial-ref" class="docs">Tutorial on refer usage with mom</h3>
<ol style="margin-top: 1em; margin-bottom: -.5em;">
  <li><a href="#db-ref">Create a <kbd>refer</kbd> database</a>
  <ul style="margin-left: -.5em; list-style-type: disc;">
    <li><a href="#example-refer-database">example <kbd>refer</kbd> database</a></li>
  </ul></li>
  <li><a href="#rcommands-ref">Insert a <kbd>refer</kbd> block</a>
  <ul style="margin-left: -.5em; list-style-type: disc;">
    <li><a href="#fn-en-block">refer block for footnotes/endnotes</a></li>
    <li><a href="#in-text-block">refer block for parenthetical insertions into running text</a></li>
    <li><a href="#bibliography-block">refer block for comprehensive bibliographies (reading lists)</a></li>
  </ul></li>
  <li><a href="#placement-ref">Tell mom where you want your references (if footnotes or endnotes)</a></li>
  <li><a href="#accessing-ref">Accessing references in the database</a></li>
  <li><a href="#fn-en-recipe">Entering footnote/endnote references</a></li>
  <li><a href="#parenthetical-insertions">Parenthetical insertions</a></li>
  <li><a href="#bibliography-from-embedded">Generating a bibliography from parenthetical insertions</a></li>
  <li><a href="#bibliography-recipe">Generating a comprehensive bibliography</a></li>
  <li><a href="#invoking-ref">Invoking groff with mom and <kbd>refer</kbd></a></li>
</ol>

<h4 id="db-ref" class="docs">1. Create a refer database</h4>

<p>
The first step in using <kbd>refer</kbd> with mom is creating a
database.  The database is a text file containing entries for the
works you will be citing.  You may set up separate databases for
individual documents, or create a large database that can be
accessed by many documents.
</p>

<p>
Entries (&#8220;records&#8221; in refer-speak) in the database
are separated from each other by a single, blank line.  The records
themselves are composed of single lines (&#8220;fields&#8221;) with
no blank lines between them.  Each field begins with a percent
sign and a single letter (the &quot;field identifier&quot;)
e.g., <kbd>%A</kbd> or <kbd>%T</kbd>.  The letter identifies
what part of a bibliographic entry the field refers to: Author,
Title, Publisher, Date, etc.  After the field identifier comes
a single space, followed by the information appropriate to
field.
</p>

<p>
Here&#8217;s an example database containing two records so you can
visualize what the above paragraph says.
</p>

<div id="example-refer-database" class="examples" style="margin-top: -.5em;">Example <kbd>refer</kbd> database</div>
<div class="examples-container" style="padding-bottom: 1em;">
<span class="pre">
%A Terry Pratchett
%A Neil Gaiman
%T Good Omens
%C London
%I Gollancz
%D 1990

%A Peter Schaffter
%T The Schumann Proof
%C Toronto
%I RendezVous Press
%D 2004
</span>
</div>

<p>
The order in which you enter fields doesn&#8217;t matter.
<kbd>Refer</kbd> will re-arrange them for you.
</p>

<h4 id="rcommands-ref" class="docs">2. Insert a refer block</h4>

<p>
Having set up your database, you now need to put some
<kbd>refer</kbd>-specific commands in your mom file.
</p>

<p>
<kbd>Refer</kbd> commands are introduced by a single line
containing <kbd>.R1</kbd>, and concluded with a single line
containing <kbd>.R2</kbd>.  What goes between the <kbd>.R1</kbd>
and <kbd>.R2</kbd> lines is called a &#8220;refer block&#8221;.
<kbd>Refer</kbd> commands in a refer block should be entered one per
line, in lowercase letters, <i>with no initial period</i> (dot).
The actual commands depend on whether you want your references
</p>
<ul>
<li>in footnotes/endnotes</li>
<li>parenthetically inserted (in abbreviated form) into running text,
referring to a works-cited list (bibliography)</li>
<li>to generate a comprehensive bibliography (a reading list)</li>
</ul>

<h5 id="fn-en-block" class="docs" style="font-size: 90%; margin-top: .25em;">Refer block for footnotes/endnotes</h5>

<p style="margin-top: .5em;">
If you want footnote or endnote references, place this block at
the <i>top</i> of your mom file.
</p>

<div id="refer-block1" class="examples" style="margin-top: -.5em;">
<div class="examples-container" style="padding-bottom: 1em;">
<span class="pre">
.R1
no-label-in-text
no-label-in-reference
join-authors " and " ", " ", and "
database &lt;full path to database&gt;
.R2
</span>
</div>
</div>
<p style="margin-top: .5em; font-size: 95%; line-height: 120%;">
<kbd>&lt;full&nbsp;path&nbsp;to&nbsp;the&nbsp;database&gt;</kbd>
means the full path including the filename, e.g.,
<kbd>/home/user/refer/my-database-file</kbd>.
</p>

<h5 id="in-text-block" class="docs" style="font-size: 90%; margin-top: .25em;">Refer block for parenthetical insertions into running text</h5>

<p style="margin-top: .5em;">
If you want short, parenthetical insertions into running text,
referring to works cited in a bibliography, place this block at
the <i>top</i> of your mom file.
</p>

<div id="refer-block2" class="examples" style="margin-top: -.5em;">
<div class="examples-container" style="padding-bottom: 1em;">
<span class="pre">
.R1
label "(A.n|Q)"
bracket-label " (" ")" ", "
join-authors ", and " ", " ", and "
move-punctuation
reverse A1
sort A1Q1T1B1E1
database &lt;full path to database&gt;
.R2
</span>
</div>
</div>
<p style="margin-top: .5em; font-size: 95%; line-height: 120%;">
<kbd>&lt;full&nbsp;path&nbsp;to&nbsp;the&nbsp;database&gt;</kbd>
means the full path including the filename, e.g.,
<kbd>/home/user/refer/my-database-file</kbd>.
</p>

<h5 id="bibliography-block" class="docs" style="font-size: 90%; margin-top: .25em;">Refer block for comprehensive bibliographies</h5>

<p style="margin-top: .5em;">
If you want to output an entire <kbd>refer</kbd> database, or
generate a comprehensive bibliography (a reading list) from a
database, place this block at the <i>bottom</i> of your mom file,
either prior to or immediately after invoking
<a href="#bibliography">BIBLIOGRAPHY</a>.
</p>

<div id="refer-block2" class="examples" style="margin-top: -.5em;">
<div class="examples-container" style="padding-bottom: 1em;">
<span class="pre">
.R1
no-label-in-text
no-label-in-reference
join-authors ", and " ", " ", and "
sort A1Q1T1B1E1
reverse A1
database &lt;full path to database&gt;
.R2
</span>
</div>
</div>

<p style="margin-top: .5em; font-size: 95%; line-height: 120%;">
<kbd>&lt;full&nbsp;path&nbsp;to&nbsp;the&nbsp;database&gt;</kbd>
means the full path including the filename, e.g.,
<kbd>/home/user/refer/my-database</kbd>.
</p>

<h4 id="placement-ref" class="docs">3. Tell mom where you want your references</h4>

<p>
If you want references in footnotes, issue the instruction
<br/>
<span class="pre-in-pp">
  .FOOTNOTE_REFS
</span>
anywhere before the first citation in your file.  Footnote markers
will be inserted into the text, and the bibliographic information
for the citation will appear as a footnote.
</p>

<p>
If you want references in endnotes, issue the instruction
<br/>
<span class="pre-in-pp">
  .ENDNOTE_REFS
</span>
anywhere before the first citation in your file.  Endnote markers
will be inserted into the text, and the bibliographic information
for the citation will appear as an endnote entry.
</p>

<p>
Note that if you want references parenthetically inserted
into running text, referring to entries in a works-cited list
(bibliography) that <kbd>mom</kbd> and <kbd>refer</kbd> assemble
automatically, no special instructions are required.  See
<a href="#bibliography-from-embedded">Generating a bibliography from parenthetical insertions</a>
for how to output the collected references.
</p>

<p>
For outputting an entire <kbd>refer</kbd> database, or
generating a comprehensive reading list from a database, see the
macro
<a href="#bibliography">BIBLIOGRAPHY</a>.
</p>

<h4 id="accessing-ref" class="docs">4. Accessing references in the database</h4>

<p>
References are accessed by putting keywords from the desired database
record between two special <kbd>refer</kbd> commands:
<br/>
<span class="pre-in-pp">
  .[
</span>
and
<br/>
<span class="pre-in-pp">
  .]
</span>
Keywords are any word, or set of words, that identify a database
record unambiguously.  Thus, if you have only one database record for
the author Ray Bradbury, 
<br/>
<span class="pre-in-pp">
  .[
  bradbury
  .]
</span>
is sufficient.  However, if your database contains several records
for books by Bradbury, say, <i>Fahrenheit 451</i> and <i>The
Martian Chronicles</i>,
&#8220;<kbd>bradbury&nbsp;451</kbd>&#8221; and
&#8220;<kbd>bradbury&nbsp;martian</kbd>&#8221; would identify the two records unambiguously.
</p>

<p>
A special database field identifier, <kbd>%K</kbd>, lets you create
unique keywords for database records to help clear up any ambiguity.
</p>

<p>
Notice that you don&#8217;t have to worry about capitalization when
entering keywords.
</p>

<h4 id="fn-en-recipe" class="docs">5. Entering footnote/endnote references</h4>

<p>
Depending on which you have issued, a
<kbd><a href="#footnote-refs">.FOOTNOTE_REFS</a></kbd>
or an
<kbd><a href="#endnote-refs">.ENDNOTE_REFS</a></kbd>
command, entering references is done like this:
<br/>
<span class="pre-in-pp">
  .REF
  .[
  keyword(s)
  .]
  .REF
</span>
If FOOTNOTE_REFS is in effect, the reference between the first
and second <kbd>.REF</kbd> will be treated as a footnote.  If
ENDNOTE_REFS, it will be treated as an endnote.  Endnote references
must be explicitly output with
<a href="docelement.html#ENDNOTES">ENDNOTES</a>
at the end of your file, before
<a href="tables-of-contents.html#TOC">TOC</a>.
</p>

<div class="box-important">
<p class="tip">
<span class="important">Important:</span>
REF behaves identically to
<a href="docelement.html#footnote">FOOTNOTE</a>
and
<a href="docelement.html#endnote">ENDNOTE</a>
with respect to the use of the <kbd>\c</kbd> inline escape.  Please
read the
<a href="docelement.html#footnote-note">HYPER IMPORTANT NOTE</a>
found in the document entry for FOOTNOTE (which also applies to
ENDNOTE).
</p>
</div>

<h4 id="parenthetical-insertions" class="docs">6. Parenthetical insertions</h4>

<p>
See
<a href="#parenthetical">Inserting parenthetical references into
text</a>.
</p>

<h4 id="bibliography-from-embedded" class="docs">7. Generating a bibliography from parenthetical insertions</h4>

<p>
To generate a bibliography from works cited by parenthetical
insertions in the text, put this at the end of your document, before
<kbd><a href="tables-of-contest.html#TOC">.TOC</a></kbd>.
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY
  .[
  $LIST$
  .]
  .BIBLIOGRAPHY OFF
</span>
</p>

<h4 id="bibliography-recipe" class="docs">8. Generating a comprehensive bibliography</h4>

<p>
You can also generate a comprehensive bibliography, which is to say a
bibliography containing more works than are actually cited (a
&#8220;reading list&#8221;), by placing references between
<kbd><a href="#bibliography">.BIBLIOGRAPHY</a></kbd>
and
<kbd><a href="#bibliography">.BIBLIOGRAPHY&nbsp;OFF</a></kbd>.
Once you have input the desired references, insert
<br/>
<span class="pre-in-pp">
  .[
  $LIST$
  .]
</span>
and follow it with <kbd>.BIBLIOGRAPHY&nbsp;OFF</kbd>.  Study the
example below if you&#8217;re having trouble visualizing this.
</p>

<div id="example-bibliography" class="examples" style="margin-top: -.5em;">Example bibliography</div>
<div class="examples-container" style="padding-bottom: 1em;">
<span class="pre">
.BIBLIOGRAPHY
.R1
no-label-in-text
no-label-in-reference
join-authors ", and " ", " ", and "
sort A1Q1T1B1E1
reverse A1
database &lt;full path to database&gt;
.R2
.[
bradbury
.]
.[
pratchett
.]
.[
$LIST$
.]
.BIBLIOGRAPHY OFF
</span>
</div>

<p>
Alternatively, you can output an entire database as a
bibliography.  Do the following at the end of your document, before
<kbd><a href="tables-of-contest.html#TOC">.TOC</a></kbd>.
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY
  .R1
  no-label-in-text
  no-label-in-reference
  join-authors ", and " ", " ", and "
  sort A1Q1T1B1E1
  reverse A1
  bibliography &lt;full path to database&gt;
  .R2
  .BIBLIOGRAPHY OFF
</span>
</p>

<h4 id="invoking-ref" class="docs">9. Invoking groff with mom and refer</h4>

<p>
So, now you&#8217;ve got a document formatted properly to use
references processed with <kbd>refer</kbd>, what do you do to output
the document?
</p>

<p>
It&#8217;s simple.  Instead of invoking groff with just the
<kbd>-mom</kbd> option, as explained
<a href="using.html#using-saving">here</a>,
invoke groff with the <kbd>-R</kbd> option as well, like this:
<br/>
<span class="pre-in-pp">
  groff -R -mom &lt;filename&gt; ...
</span>
</p>
</div>

<h2 id="mla" class="docs">MLA (Modern Language Association) style</h2>

<h3 id="ref-styles" class="docs">Types of references (endnote, footnote, or embedded in text)</h3>

<p>
MLA allows for three types of references, or referencing styles:
</p>
<ul style="margin-top: -.5em;">
  <li>short, parenthetical references in the text, linked to a
      works-cited list (bibliography) at the end of the document</li>
  <li>footnote references</li>
  <li>endnote references</li>
</ul>

<p style="margin-top: -.5em;">
There are significant differences between the way footnote/endnote
references should be formatted, and the formatting style of
bibliographies.  One example is that footnote/endnote references
should have their first lines indented, whereas bibliographic
references should have their second lines indented.  Fortunately,
with mom, there&#8217;s no need to concern yourself with the differences;
they&#8217;re taken care of automatically.
</p>

<p>
In terms of inserting references into your documents,
footnote/endnote references are input in a manner similar to
entering any other kind of
<a href="docelement.html#footnote-into">footnote</a>
or
<a href="docelement.html#endnote-into">endnote</a>.
Parenthetical references, however, need to be handled differently.
See the next section.
</p>

<h3 id="parenthetical" class="docs">Inserting parenthetical references into the text</h3>

<p>
MLA style prefers restricting the information in parenthetical
references to the barest minimum needed to identify works
in the works-cited list (the bibliography).  Typically, a
parenthetical insertion is just the author&#8217;s last name
followed by the page number of the cited work (if only one work by
that author is cited), or by the author, a shortened title of the
work, and the page number (if more than one work is cited).
</p>

<p>
This necessitates a slightly fiddly way of entering parenthetical
references, though not by any means difficult or hard to make sense
of.
</p>

<p>
The <kbd>refer</kbd> block suggested
<a href="#refer-block2">here</a>
for parenthetical references prints only the author&#8217;s
last name from the database record identified by your keywords
(the <kbd>label</kbd> command), surrounded by parentheses (the
<kbd>bracket-label</kbd> command).  Therefore, assuming you are
citing Ray Bradbury&#8217;s <i>The Martian Chronicles</i>, and it is
the only work by Bradbury mentioned in the text,
<br/>
<span class="pre-in-pp">
  ...end of sentence.
  .[
  martian chronicles
  .]
  A new sentence...
</span>
will insert &#8220;<span style="font-family: times; font-size: 105%; font-weight: bold">...end of sentence (Bradbury). A new sentence...</span>&#8221; into the text.
<i>The Martian Chronicles</i> will be added
to the works-cited list generated at the end of the document if it
is not already present as the result of an earlier reference.
</p>

<p>
If you need a page number to identify where in <i>The Martian
Chronicles</i> to find a specific quote
<br/>
<span class="pre-in-pp">
  "...aluminum roaches and iron crickets."
  .[
  [ martian chronicles
  .] 168)
  A new sentence...
</span>
results in &#8220;<span style="font-family: times; font-size: 105%; font-weight: bold">&#8220;...aluminum roaches and iron crickets.&#8221; (Bradbury 168)  A new sentence...</span>&#8221;
(which is excruciatingly correct MLA style).  The
&#8220;<kbd>[</kbd>&#8221; before <kbd>martian&nbsp;chronicles</kbd> tells
refer to print the opening parenthesis; any text immediately
following the &#8220;<kbd>.]</kbd>&#8221;, including spaces,
<i>replaces</i> the closing parenthesis.  (Notice that you have to
add the closing parenthesis yourself after the page number.)
</p>

<p>
If your document cites more than one work by Bradbury and you need
a title and page number in addition to the author's name in the
inline reference,
<br/>
<span class="pre-in-pp">
  "...aluminum roaches and iron crickets."
  .[
  [ bradbury martian
  .], \fIChronicles\fP 168)
  A new sentence...
</span>
will produce &#8220;<span style="font-family: times; font-size: 105%; font-weight: bold">&#8220;...aluminum roaches and iron crickets.&#8221; (Bradbury, <i>Chronicles</i> 168) A new sentence...</span>&#8221;.
</p>

<div class="examples-container" style="margin-top: 1.5em; margin-bottom: 1.5em;">
<h3 id="tutorial-ref" class="docs">The <span style="text-transform: none">&#8216;label&#8217;<span style="text-transform: uppercase"> and <span style="text-transform: none">&#8216;bracket-label&#8217;<span style="text-transform: uppercase"> commands</h3>

<p>
The <kbd>label</kbd> and <kbd>bracket-label</kbd> commands in
the refer block allow you to customize what information goes
into parenthetical references, and how they should be formatted.
<kbd>label</kbd> dictates which fields from the database record
to print and how to punctuate them. <kbd>bracket-label</kbd>
controls the bracketing style.  Users are encouraged to consult
<kbd>man&nbsp;refer</kbd> for usage.
</p>

<p>
Here&#8217;s an example of how to set up APA-style references, which
require the author and date of publication, optionally with a page
number or range of pages.
<br/>
<span class="pre-in-pp">
  .R1
  label "(A.n|Q) ', ' D.y"
  bracket-label " (" ")" ", "
  join-authors ", and " ", " ", and "
  move-punctuation
  reverse A1
  sort A1Q1T1B1E1
  database /home/peter/Groff-mom/Testing/Refer/refer-database
  .R2
</span>
Assuming a reference to a work by Ursula Leguin published in 1980
<br/>
<span class="pre-in-pp">
  .[
  leguin
  .]
</span>
produces
<span style="font-family: times; font-size: 105%; font-weight: bold">
(Leguin, 1980)
</span>.
If a page number is also required
<br/>
<span class="pre-in-pp">
  .[
  [ leguin
  .], p. 73)
</span>
produces
<span style="font-family: times; font-size: 105%; font-weight: bold">(Leguin, 1980, p. 73)</span>.
</p>
</div>

<h2 id="database" class="docs">The refer database</h2>

<h3 id="database-intro" class="docs">Introduction</h3>

<p style="margin-top: .5em;">
The heart and soul of <kbd>refer</kbd> is the bibliographic
database.  Knowing how to create records (ie. the entries for works
cited in a document) is largely a question matching data (author,
title, publisher, etc) with the correct field identifier.  For
example, if you&#8217;re citing from a scholarly journal, you need to know
that <kbd>%J</kbd> is the field identifier for journal names and
<kbd>%N</kbd> is the field identifier for the journal number.  Use
the
<a href="#fields-quick">Quick list of field identifiers</a>
as your guide.
</p>

<h3 id="database-rules" class="docs">The rules</h3>

<p style="margin-top: .5em;">
Entering the data correctly is also important.  Fortunately, there
are very few rules, and those there are make sense.  In a nutshell:
</p>
<ul style="margin-top: -.5em;">
  <li>enter the data in each field in natural order; author John Smith is
      &#8220;John Smith&#8221;, editor Jane Doe is &#8220;Jane Doe&#8221;</li>
  <li>capitalize all proper nouns and words in titles as you expect
      to see them; otherwise, use lowercase</li>
  <li>use no terminating punctuation unless required; typically,
      required punctuation is the period after a shortform
      (&#8220;ed.&#8221; or &#8220;eds.&#8221;, &#8220;Jr.&#8221;,
      etc) or a question mark or exclamation mark at the end of a
      title</li>
  <li>if part of a field needs to be set off in single-quotes, use
      <kbd>\[oq]</kbd> and <kbd>\[cq]</kbd> (openquote, closequote) rather than the
      single-quote (or apostrophe) character on your keyboard</li>
  <li>if part of a field needs to be forced into italics, use the
      escapes <kbd>\*[IT]</kbd> and <kbd>\*[PREV]</kbd>; if the italicized
      portion concludes the field, omit <kbd>\*[PREV]</kbd></li>
  <li>if you require characters with accents, ligatures or special
      symbols, use groff&#8217;s &#8220;named&#8221; glyphs (e.g.,
      <kbd>\['e]</kbd> for <kbd>é</kbd>); a full list can be found in
      <kbd>man groff_char</kbd></li>
</ul>

<h3 id="fields-quick" class="docs" style="margin-top: 1.25em; margin-bottom: .5em;">Quick guide to field identifiers <span style="text-transform: none;">(click on any that are links for more information)</span></h3>

<div class="examples-container" style="padding-bottom: 1em;">
<span class="pre">
<a class="quick" href="#A">%A</a> author           &ndash; records may contain multiple authors,
                      one per line
<a class="quick" href="#Q">%Q</a> non-human author &ndash; corporate author, e.g., National Geographic;
                      may also be used for exceptional reference types
<a class="quick" href="#m">%m</a> multiple authors &ndash; whenever "et al." is desirable
<a class="quick" href="#i">%i</a> idem             &ndash; multiple works by the same author
<a class="quick" href="#p">%p</a> post-author      &ndash; post-author information (e.g., appendix,
                      foreword, letter)
%T title            &ndash; primary title (of a book) or the
                      title of an article (within a scholarly
                      journal or a magazine)
%B book title       &ndash; when %T contains the title of an article;
<a class="quick" href="#q">%q</a> force quote      &ndash; force a title into double-quotes
%t reprint title    &ndash; if different from a work's original title
%b main author      &ndash; when citing a preface, foreword,
                      introduction, or afterword, the author of
                      the complete original work
<a class="quick" href="#E">%E</a> editor           &ndash; records may contain multiple editors,
                      one per line
<a class="quick" href="#l">%l</a> translator       &ndash; if more than one translator, all the
                      names
%r translator       &ndash; if tr. and ed. are one in the same
    and editor
%M magazine or      &ndash; when %T contains the title of an article
    newspaper
%J journal          &ndash; when %T contains the title of an article
%e edition          &ndash; number or name of an edition
                      (e.g., Second, 2nd, Collector's, etc.)
%S series           &ndash; series name of books or journals
%V volume           &ndash; volume number (of books)
%N journal number   &ndash; journal or magazine number
%R report number    &ndash; technical report number
%G gov&#8217;t.           &ndash; government ordering number
<a class="quick" href="#O">%O</a> other            &ndash; information for which there is no appropriate
                      field letter
<a class="quick" href="#C">%C</a> city             &ndash; city of publication
%I publisher        &ndash; publisher
%D date             &ndash; publication date
<a class="quick" href="#d">%d</a> original        
   publication date &ndash; if different from date of publication
<a class="quick" href="#P">%P</a> page(s)          &ndash; page number or range
<a class="quick" href="#n">%n</a> annotation       &ndash; annotation to the reference
%s site name        &ndash; for internet references, the website name
%c content          &ndash; for internet references, the source of
                      the material (e.g., Web or Email); for websites,
                      the content, if unclear
%o organization     &ndash; for internet sites, the organization, group
                      or sponsor of the site
%a access date      &ndash; for internet sites, the date of access
%u URL              &ndash; for internet sites, the full URL
<a class="quick" href="#K">%K</a> keywords         &ndash; words that help clear up ambiguities in
                      the database
</span>
</div>

<h3 id="fields-specifics" class="docs">Field identifiers: specifics, usage and examples</h3>

<h4 id="A" class="docs fields">%A &ndash; author field</h4>

<p>
For multiple authors, enter each in a separate <kbd>%A</kbd>
field in the order in which they should appear.  If the author on
the title page is the editor (say, a book of short stories edited by
Ray Bradbury), add <kbd>, ed.</kbd> to the end of the
<kbd>%A</kbd> field, like this:
<br/>
<span class="pre-in-pp">
  %A Ray Bradbury, ed.
</span>
Do not use the <kbd>%E</kbd> field in these instances.  If the work
has several such editors, enter each in a separate <kbd>%A</kbd>
field, as for multiple authors, and add <kbd>, eds.</kbd> to the
last one, like this:
<br/>
<span class="pre-in-pp">
  %A Jane Dearborne
  %A Bill Parsons, eds.
</span>
</p>

<h4 id="Q" class="docs fields">%Q &ndash; exceptional entries</h4>

<p>
Sometimes, a work has no author or title information, for example a
book review in a newspaper.  In such cases, use <kbd>%Q</kbd>, like
this:
<br/>
<span class="pre-in-pp">
  %Q Rev. of \*[IT]Mean Streets Omnibus\*[PREV], ed. Raymond Hammett
  %M Times Literary Supplement
  %D 7 July 1972
</span>
</p>

<h4 id="m" class="docs fields">%m &ndash; multiple authors (et al.)</h4>

<p>
Whenever it&#8217;s desirable to abbreviate a list of authors with
&#8220;et al.&#8221; enter it in the <kbd>%m field</kbd>, like this:
<br/>
<span class="pre-in-pp">
  %A Paul Lauter
  %A Doug Scofield
  %m et al.
</span>
</p>

<h4 id="i" class="docs fields">%i &ndash; idem</h4>

<p>
Whenever there are several works by the same author, fill out the
<kbd>%A</kbd> field with the author&#8217;s name and follow it with the
<kbd>%i idem</kbd>, like this:
<br/>
<span class="pre-in-pp">
  %A Jonathon Schmidt
  %i idem
</span>
Per MLA style, the author&#8217;s name will be replaced by a long dash.
</p>

<p>
If it&#8217;s necessary to state the role the author served (say,
editor or translator), fill out the <kbd>%i</kbd> field with the
information minus <kbd>idem</kbd>, like this:
<br/>
<span class="pre-in-pp">
  %A Ray Bradbury
  %i ed.
  %T Timeless Stories for Today and Tomorrow
</span>
</p>

<h4 id="p" class="docs fields">%p &ndash; post-author information</h4>

<p>
When citing from a preface, foreword, introduction, afterword or
appendix, MLA requires that the information come between the
author&#8217;s name and the work&#8217;s title, like this:
<br/>
<span class="pre-in-pp">
  %A Martin Packham, Jr.
  %p appendix
  %T Why the West was Won
</span>
Do not capitalize the first word in the <kbd>%p</kbd> field unless
it is a proper noun.
</p>

<h4 id="q" class="docs fields">%q &ndash; force title into double-quotes</h4>

<p>
Occasionally, you may not be able to use <kbd>%T</kbd> for the
title because doing so will cause it to come out in italics when
double-quotes are called for.  An example of this is when citing
from a dissertation.  Use <kbd>%q</kbd> to get around the problem,
like this:
<br/>
<span class="pre-in-pp">
  %A Carol Sakala
  %q Maternity Care Policy in the United States
  %O diss., Boston U, 1993
</span>
</p>

<h4 id="E" class="docs fields">%E &ndash; editor</h4>

<p>
Use this only if the author and the editor are not one in the same,
e.g.,
<br/>
<span class="pre-in-pp">
  %A Geoffrey Chaucer
  %T The Works of Geoffrey Chaucer
  %E F. W. Robinson
</span>
</p>

<h4 id="l" class="docs fields">%l &ndash; translator</h4>

<p>
If there is more than one translator, enter all the names, with
appropriate conjunctions and punctuation, like this:
<br/>
<span class="pre-in-pp">
  %A Feodor Dostoevsky
  %T Crime and Punishment
  %l Jessie Coulson, Marjorie Benton, and George Bigian
</span>
</p>

<h4 id="O" class="docs fields">%O &ndash; other</h4>

<p>
Occasionally, MLA requires additional information after the title
but before the publication data (city/publisher/date), for instance,
the number of volumes in a series, or the fact that the work cited
is a dissertation.  Here are two examples:
<br/>
<span class="pre-in-pp">
  %A Arthur M. Schlesinger
  %T History of U.S. Political Parties
  %O 4 vols.
  %C New York
  %I Chelsea
  %D 1973

%A Carol Sakala
  %q Maternity Care Policy in the United States
  %O diss., Boston U, 1993
</span>
Do not capitalize the first word of the <kbd>%O</kbd> field unless
it is a proper noun.
</p>

<p>
Generally, consider <kbd>%O</kbd> a catch-all for information that
does not match the criterion of any existing field identifier.
</p>

<h4 id="C" class="docs fields">%C &ndash; city</h4>

<p>
Normally, <kbd>%C</kbd> takes the name of the city of publication,
and that&#8217;s all.  In the case of a republished book, if new material
has been added, put such information in the <kbd>%C</kbd>
field, like this:
<br/>
<span class="pre-in-pp">
  %A Theodore Dreiser
  %T Sister Carrie
  %d 1900
  %C Introd. E. L. Doctorow, New York
</span>
</p>

<h4 id="d" class="docs fields">%d &ndash; original date of publication</h4>

<p>
Normally, all that is required in the <kbd>%d</kbd> field is the
original date of publication.  However, if supplementary original
publication data is desired, include it in the field, like this:
<br/>
<span class="pre-in-pp">
  %A Kazuo Ishiguro
  %T The Remains of the Day
  %d London: Faber, 1989
  %C New York
  %I Knopf
  %D 1990
</span>
</p>

<h4 id="K" class="docs fields">%K &ndash; keywords</h4>

<p>
<kbd>Refer</kbd> hates ambiguity, and complains when encountering
it.  Ambiguities result from the duplication of any word in more
than one database record when that word is used to identify a
reference in your input file.  Use <kbd>%K</kbd> to create unique
keywords found nowhere else in the database.
</p>

<p>
Imagine, for example, that your database contains records for
Ray Bradbury&#8217;s <i>The Illustrated Man</i>, another record for
<i>The Illustrated Bradbury</i> and a third for <i>Bradbury,
Illustrated</i>.  <kbd>%K</kbd> can be used to clear up any
ambiguities by assigning a unique word to each record, for example
<kbd>%K ill-man</kbd> for the first, <kbd>%K ill-brad</kbd> for the
second, and <kbd>%K brad-ill</kbd> for the third.
</p>

<h4 id="P" class="docs fields">%P &ndash; pages</h4>

<p>
When citing page numbers, which is often the case with footnotes
and endnotes, it is not necessary to put the numbers in the database
records.  The <kbd>%P</kbd> field can be added underneath the
keyword(s) in the <kbd>.[</kbd> / <kbd>.]</kbd> entries in your
input file, allowing you to recycle database records.  For example,
<br/>
<span class="pre-in-pp">
  %A Frye
  %T Anatomy
  %K frye-anat
</span>
could be your short record for Northrop Frye&#8217;s <i>The Anatomy of
Criticism</i>.  Any time you wanted to cite a particular page or
range of pages from that work in a footnote or endnote, you can
put
<br/>
<span class="pre-in-pp">
  .REF
  .[
  frye-anat
  %P 67-8
  .]
  .REF
</span>
in your input file, and have it show up with the correct page(s).
</p>

<h4 id="n" class="docs fields">%n &ndash; annotations</h4>

<p>
Annotations come at the very end of references.  Capitalize all
words that require it, including, for bibliographic references (but not
for footnotes/endnotes) the first.
</p>

<div class="macro-list-container">
<h3 id="index-ref" class="macro-list">The bibliography and reference macros</h3>
<ul class="macro-list">
  <li><a href="#ref">REF</a> &ndash; begin/end a <kbd>refer</kbd> reference that will go in a footnote or endnote</li>
  <li><a href="#footnote-refs">FOOTNOTE_REFS</a> &ndash; instruct mom to put REFs in footnotes</li>
  <li><a href="#endnote-refs">ENDNOTE_REFS</a> &ndash; instruct mom to put REFs in endnotes</li>
  <li><a href="#indent-refs">INDENT_REFS</a> &ndash; manage indenting of references, per MLA standards</li>
  <li><a href="#hyphenate-refs">HYPHENATE_REFS</a> &ndash; enable/disable hyphenation of references</li>
  <li><a href="#bibliography">BIBLIOGRAPHY</a> &ndash; begin a bibliography</li>
  <li><a href="#bibliography-type">BIBLIOGRAPHY_TYPE</a> &ndash; plain, or numbered list bibliography</li>
  <li><a href="#biblio-control">Bibliography control macros and defaults</a></li>
</ul>
</div>

<div class="macro-id-overline">
<h3 id="ref" class="macro-id">Begin/end a reference that goes in a footnote or endnote</h3>
</div>

<div class="box-macro-args">
Macro: <b>REF</b>
</div>

<p>
The macro REF tells mom that what follows is
<kbd>refer</kbd>-specific, a keyword-identified reference to a
<kbd>refer</kbd> database record.  Depending on whether you&#8217;ve issued
a
<kbd><a href="#footnote-refs">.FOOTNOTE_REFS</a></kbd>
or
<kbd><a href="#endnote-refs">.ENDNOTE_REFS</a></kbd>
instruction, the reference will be formatted and placed in a
footnote, or collected for output in the endnotes.  Parenthetical
insertion of references into the text do not require
<kbd>.REF</kbd> (see
<a href="#parenthetical">Inserting parenthetical references into the text</a>.)
</p>

<p>
Before you use REF, you must create a <kbd>refer</kbd> block
containing <kbd>refer</kbd> commands (see
<a href="#rcommands-ref">Required refer commands</a>
in the tutorial, above).
</p>

<p>
REF usage always looks like this:
<br/>
<span class="pre-in-pp">
  .REF
  .[
  keyword(s)
  .]
  .REF
</span>
Notice that REF &#8220;brackets&#8221; the <kbd>refer</kbd> instructions,
and never takes an argument.
</p>

<p>
What REF really is is a convenience.  One could, for example, put a
reference in a footnote by doing
<br/>
<span class="pre-in-pp">
  .FOOTNOTE
  .[
  keyword(s)
  .]
  .FOOTNOTE OFF
</span>
However, if you have a lot of references going into footnotes (or
endnotes), it&#8217;s much shorter to type <kbd>.REF/.REF</kbd>
than <kbd>.FOOTNOTE/.FOOTNOTE OFF</kbd>.  It also helps you
distinguish&mdash;visually, in your input file&mdash;between
footnotes (or endnotes) which are references, and footnotes (or
endnotes) which are explanatory, or expand on the text.
</p>

<div class="box-tip">
<p class="tip-top">
<span class="note">Note:</span>
If you&#8217;re using REF to put references in footnotes and your
footnotes need to be indented, you may (indeed, should) pass REF the
same arguments used to indent footnotes.  See
<a href="docelement.html#footnote">FOOTNOTE</a>.
</p>

<p class="tip-bottom">
<span class="additional-note">Additional note:</span>
REF behaves identically to
<a href="docelement.html#footnote">FOOTNOTE</a>
or
<a href="docelement.html#footnote">ENDNOTE</a>,
so please read the HYPER IMPORTANT NOTE found in the document entry
for
<a href="docelement.html#footnote-note">FOOTNOTE</a>
and/or
<a href="docelement.html#endnote-note">ENDNOTE</a>
for instructions on correct entry of text preceding and following REF.
</p>
</div>

<div class="macro-id-overline">
<h3 id="footnote-refs" class="macro-id">Instruct mom to put references in footnotes</h3>
</div>

<div class="box-macro-args">
Macro: <b>FOOTNOTE_REFS</b>
</div>

<p>
FOOTNOTE_REFS is an instruction to
<a href="#ref">REF</a>,
saying, &#8220;put all subsequent references bracketed by the REF
macro into footnotes.&#8221; You invoke it by itself, with no
argument.
</p>

<p>
When FOOTNOTE_REFS is in effect, regular footnotes, (ie
those introduced with <kbd>.FOOTNOTE</kbd> and terminated with
<kbd>.FOOTNOTE OFF</kbd>) continue to behave normally.
</p>

<p>
You may switch between FOOTNOTE_REFS and
<a href="#endnote-refs">ENDNOTE_REFS</a>
at any time.
</p>

<p>
By default, FOOTNOTE_REFS sets the
<a href="docelement.html#footnote-marker-style">FOOTNOTE_MARKER_STYLE</a>
to <kbd>NUMBER</kbd> (ie superscript numbers).  You may change
change that if you wish by invoking FOOTNOTE_MARKER_STYLE, with the
argument you want after FOOTNOTE_REFS.
</p>

<p>
If you have a lot of footnote references, and are identifying
footnotes by line number rather than by markers in the text, you may
want to enable
<a href="docelement.html#footnotes-run-on">FOOTNOTES_RUN_ON</a>
in conjunctions with FOOTNOTE_REFS.
</p>

<div class="macro-id-overline">
<h3 id="endnote-refs" class="macro-id">Instruct mom to put references in endnotes</h3>
</div>

<div class="box-macro-args">
Macro: <b>ENDNOTE_REFS</b>
</div>

<p>
ENDNOTE_REFS is an instruction to
<a href="#ref">REF</a>,
saying, &#8220;add all subsequent references bracketed by the REF
macro to endnotes.&#8221; You invoke it by itself, with no argument.
</p>

<p>
When ENDNOTE_REFS is in effect, mom continues to format regular
endnotes, (ie those introduced with <kbd>.ENDNOTE</kbd> and
terminated with <kbd>.ENDNOTE OFF</kbd>) in the normal way.
</p>

<p>
You may switch between ENDNOTE_REFS and
<a href="#footnote-refs">FOOTNOTE_REFS</a>
at any time.
</p>

<div class="macro-id-overline">
<h3 id="indent-refs" class="macro-id">Manage indenting of references, per MLA standards</h3>
</div>

<div class="box-macro-args">
Macro: <b>INDENT_REFS</b> <kbd class="macro-args">FOOTNOTE | ENDNOTE | BIBLIO &lt;indent&gt; </kbd>
</div>

<p class="requires">
&bull;&nbsp;<kbd style="font-style: normal;">&lt;indent&gt;</kbd> requires a <a href="definitions.html#unitofmeasure">unit of measure</a>
</p>

<p>
MLA-style requires that footnote or endnote references should
have their first lines indented, whereas bibliographic references
should have their second and subsequent lines indented.  Thus, if
you invoke INDENT_REFS with a first argument of <kbd>FOOTNOTE</kbd>
or <kbd>ENDNOTE</kbd>, the value you give to
<kbd>&lt;indent&gt;</kbd> sets the indent of the first line for
those types of references; if you invoke it with <kbd>BIBLIO</kbd>,
the value you give <kbd>&lt;indent&gt;</kbd> sets the indent of
second and subsequent lines in bibliographies.
</p>

<p>
By default, the indent for all three types of references is 1/2-inch
for
<a href="docprocessing.html#printstyle">PRINTSTYLE <kbd>TYPEWRITE</kbd></a>
and 2
<a href="definitions.html#em">ems</a>
for
<a href="docprocessing.html#printstyle">PRINTSTYLE <kbd>TYPESET</kbd></a>.
</p>

<p>
If you&#8217;d like to change the indent for footnote, endnote or
bibliography references, just invoke <kbd>.INDENT_REFS</kbd> with
a first argument saying which one you want the indent changed for, and
a second argument saying what you&#8217;d like the indent to be.
For example, if you want the second-line indent of references on a
bibliography page to be 3
<a href="definitions.html#picas-points">picas</a>,
<br/>
<span class="pre-in-pp">
  .INDENT_REFS BIBLIO 3P
</span>
is how you&#8217;d set it up.
</p>

<div class="box-tip">
<p class="tip-top">
<span class="tip">Tip:</span>
If you are identifying endnotes by line number
(<a href="docelement.html#endnote-marker-style">ENDNOTE_MARKER_STYLE&nbsp;<kbd>LINE</kbd></a>)
and have instructed mom to put references bracketed by
<kbd><a href="#ref">.REF</a></kbd>
into endnotes (with
<a href="#endnote-refs">ENDNOTE_REFS</a>),
you will almost certainly want to adjust the second-line indent for
references in endnotes, owing to the way mom formats line-numbered
endnotes.  Study the output of such documents to see whether an
indent adjustment is required.
</p>

<p>
The same advice applies to references in endnotes when you have enabled
<br/>
<span class="pre-in-pp">
  <a href="docelement.html#endnote-numbers-align-left">.ENDNOTE_NUMBERS_ALIGN_LEFT</a>
</span>
in favour of mom&#8217;s default, which is to align them right.
Study the output to determine what size of second-line indent works
best.
</p>

<p class="tip-bottom">
<i>(Frankly, endnote references formatted in MLA-style combined with
left-aligned endnote numbers is a no-win situation, and so is best
avoided.  Wherever you set the indent, you&#8217;ll end up with the
endnote numbers appearing to hang into the left margin, so you might
as well have them hang, as is the case with
<kbd style="font-style: normal;">.ENDNOTE_NUMBERS_ALIGN_RIGHT</kbd>.</i>&nbsp;&nbsp;&ndash;&nbsp;Ed.)
</p>
</div>

<div class="macro-id-overline">
<h3 id="hyphenate-refs" class="macro-id">Enable/disable hyphenation of references</h3>
</div>

<div class="box-macro-args">
Macro: <b>HYPHENATE_REFS</b> <kbd class="macro-args">&lt;toggle&gt;</kbd>
</div>

<p>
If you have hyphenation turned on for a document (see
<a href="typesetting.html#hy">HY</a>),
and in most cases you probably do, mom will hyphenate references
bracketed by the
<a href="#ref">REF</a>
macro.  Since references typically contain quite a lot of proper
names, which shouldn&#8217;t be hyphenated, you may want to disable
hyphenation for references.
</p>

<p>
HYPHENATE_REFS is a toggle macro; invoking it by itself will turn
automatic hyphenation of REF-bracketed references on (the default).
Invoking it with any other argument (<kbd>OFF, NO, X</kbd>, etc.)
will disable automatic hyphenation for references bracketed by REF.
</p>

<p>
An alternative to turning reference hyphenation off is to prepend
to selected proper names in your <kbd>refer</kbd> database
the groff
<a href="definitions.html#discretionaryhyphen">discretionary hyphen</a>
character, <kbd>\%</kbd>.  (See
<a href="#ref-disc-hy">here</a>
in the tutorial for an example.)
</p>

<div class="box-tip">
<p class="tip">
<span class="note">Note:</span>
References embedded in the body of a document are considered part of
<a href="definitions.html#running">running text</a>,
and are hyphenated (or not) according to whether hyphenation is
turned on or off for running text.  Therefore, if you want to
disable hyphenation for such references, you must do so temporarily,
with
<a href="typesetting.html#hy">HY</a>,
like this:
<br/>
<span class="pre-in-pp">
  .HY OFF
  .[
  keyword(s)
  .]
  .HY
</span>
Alternatively, sprinkle your database fields liberally with
<kbd>\%</kbd>.
</p>
</div>

<div class="macro-id-overline">
<h3 id="bibliography" class="macro-id">Begin a bibliography</h3>
</div>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY</b> <kbd class="marco-args">toggle</kbd>
</div>

<p>
To append a bibliography to your document, whether of references
inserted parenthetically into text or a comprehensive reading list
derived from a large <kbd>refer</kbd> database, all you need
do is invoke <kbd>.BIBLIOGRAPHY</kbd>. <kbd>.BIBLIOGRAPHY</kbd>
breaks to a new page, prints the title (BIBLIOGRAPHY by default, but
that can be changed), and awaits <kbd>refer</kbd> instructions.  How
to create bibliographies is covered in the tutorial section,
<a href="#bibliography-from-embedded">Generating a bibliography from parenthetical insertions</a>
and
<a href="#bibliography-recipe">Generating a comprehensive bibliography</a>.
When all the required data has been entered, type
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY OFF
</span>
to complete the bibliography.
</p>

<p>
See the
<a href="#biblio-control">Bibliography control macros and defaults</a>
for macros to tweak, design and control the appearance of
bibliography pages.
</p>

<div class="macro-id-overline">
<h3 id="bibliography-type" class="macro-id">Plain, or numbered list bibliography</h3>
</div>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_TYPE</b> <kbd class="macro-args">PLAIN | LIST [ &lt;list separator&gt; ] [ &lt;list prefix&gt; ]</kbd>
</div>

<p>
Mom offers two styles of bibliography output: plain, or numbered
list style.  With the argument, <kbd>PLAIN</kbd>, bibliography entries are output
with no enumerators.  With the argument, <kbd>LIST</kbd>, each entry is numbered.
</p>

<p>
The two optional arguments, <kbd>&lt;list&nbsp;separator&gt;</kbd>
and <kbd>&lt;list&nbsp;prefix&gt;</kbd> have the same meaning as the
equivalent arguments to
<a href="docelement.html#list">LIST</a>
(ie <kbd>&lt;separator&gt;</kbd> and <kbd>&lt;prefix&gt;</kbd>).
</p>

<p>
You may enter the BIBLIOGRAPHY_TYPE either before or after
<kbd>.BIBLIOGRAPHY</kbd>.  It must, however, always come before the
any <kbd>refer</kbd> commands.  See
<a href="#bibliography-from-embedded">Generating a bibliography from parenthetical insertions</a>
and
<a href="#bibliography-recipe">Generating a comprehensive bibliography</a>.
</p>

<p>
Mom&#8217;s default BIBLIOGRAPHY_TYPE is PLAIN.
</p>

<div class="defaults-container" style="background-color: #ded4bd; border: none;">
<h3 id="biblio-control" class="docs defaults">Bibliography control macros and defaults</h3>

<p style="margin-top: .25em; margin-left: 9px;">
Mom processes bibliography pages in a manner very similar to the
way she processes endnotes pages.  The bibliography page control
macros, therefore, behave in the same way as their endnotes pages
equivalents.
</p>

<ol style="margin-top: -.5em; padding-bottom: .5em;">
  <li><a href="#biblio-general"><b>General bibliography style control</b></a>
  <ul style="margin-left: -.5em;">
    <li><a href="#biblio-style">Base family/font/quad</a></li>
    <li><a href="#biblio-pt-size">Base point size</a></li>
    <li><a href="#biblio-lead">Leading</a></li>
    <li><a href="#biblio-spacing">Adjust the space between bibliography entries</a></li>
    <li><a href="#singlespace-biblio">Singlespace bibliographies (for TYPEWRITE only)</a></li>
    <li><a href="#biblio-no-columns">Turning off column mode during bibliography output</a></li>
  </ul></li>
  <li><a href="#biblio-pagination"><b>Pagination of bibliographies</b></a>
  <ul style="margin-left: -.5em;">
    <li><a href="#biblio-pagenum-style">Page numbering style</a></li>
    <li><a href="#biblio-first-pagenumber">Setting the first page number of bibliographies</a></li>
    <li><a href="#biblio-no-first-pagenum">Omitting a page number on the first page of bibliographies</a></li>
    <li><a href="#suspend-pagination">Suspending pagination during bibliography output</a></li>
  </ul></li>
  <li><a href="#biblio-header-control"><b>Header/footer control</b></a>
  <ul style="margin-left: -.5em;">
    <li><a href="#biblio-modify-hdrftr">Modifying what goes in bibliography headers/footers</a></li>
    <li><a href="#biblio-hdrftr-center">Header/footer centre string when doctype is CHAPTER</a></li>
    <li><a href="#biblio-allows-headers">Allow headers on bibliography pages</a></li>
  </ul></li>
  <li><a href="#biblio-main-title"><b>Bibliography first-page title control</b></a>
  <ul>
    <li><a href="#biblio-string">Title string</a></li>
    <li><a href="#biblio-string-control">Title string control macros and defaults</a></li>
    <li><a href="#biblio-string-placement">Title string placement</a></li>
    <li><a href="#biblio-string-underline">Title string underscoring</a></li>
    <li><a href="#biblio-string-caps">Title string capitalization</a></li>
  </ul></li>
</ol>
</div>

<h4 id="biblio-general" class="docs" style="margin-top: -1.5em; margin-bottom: .5em;">1. General bibliography page style control</h4>

<h5 id="biblio-style" class="docs" style="margin-top: 0; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Base family/font/quad</h5>

<div class="defaults-container" style="padding-bottom: 8px;">
<p class="defaults" style="padding-top: 6px;">
See
<a href="#control-macro-args">Arguments to the control macros</a>.
</p>
<span class="pre defaults">
.BIBLIOGRAPHY_FAMILY    default = prevailing document family; default is Times Roman
.BIBLIOGRAPHY_FONT      default = roman
.BIBLIOGRAPHY_QUAD*     default = justified

*Note: BIBLIOGRAPHY_QUAD must be set to either L (LEFT) or J (JUSTIFIED);
 R (RIGHT) and C (CENTER) will not work.
</span>
</div>

<h5 id="biblio-pt-size" class="docs" style="margin-top: -1.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Base point size</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_PT_SIZE</b> <kbd class="macro-args">&lt;base type size of bibliography&gt;</kbd>
</div>

<p>
Unlike most other control macros that deal with size of document
elements, BIBLIOGRAPHY_PT_SIZE takes as its argument an absolute
value, relative to nothing.  Therefore, the argument represents the
size of bibliography type in
<a href="definitions.html#picaspoints">points</a>,
unless you append an alternative
<a href="definitions.html#unitofmeasure">unit of measure</a>.
For example,
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_PT_SIZE 12
</span>
sets the base point size of type on the bibliography page to 12
points, whereas
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_PT_SIZE .6i
</span>
sets the base point size of type on the bibliography page to 1/6 of an
inch.
</p>

<p>
The type size set with BIBLIOGRAPHY_PT_SIZE is the size of type used
for the text of the bibliographies, and forms the basis from which
the point size of other bibliography page elements is calculated.
</p>

<p>
The default for
<a href="docprocessing.html#printstyle">PRINTSTYLE <kbd>TYPESET</kbd></a>
is 12.5 points (the same default size used in the body of the
document).
</p>

<h5 id="biblio-lead" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Leading</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_LEAD</b> <kbd class="macro-args">&lt;base leading of bibliographies&gt; [ ADJUST ]</kbd>
</div>

<p class="requires">
&bull;&nbsp;Does not require a <a href="definitions.html#unitofmeasure">unit of measure</a>; points is assumed
</p>

<p>
Unlike most other control macros that deal with leading of document
elements, BIBLIOGRAPHY_LEAD takes as its argument an absolute value,
relative to nothing.  Therefore, the argument represents the
<a href="definitions.html#leading">leading</a>
of bibliographies in
<a href="definitions.html#picaspoints">points</a>
unless you append an alternative
<a href="definitions.html#unitofmeasure">unit of measure</a>.
For example,
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_LEAD 14
</span>
sets the base leading of type on the bibliography page to 14
points, whereas
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_LEAD .5i
</span>
sets the base leading of type on the bibliography page to 1/2 inch.
</p>

<p>
If you want the leading of bibliographies adjusted to fill the page,
pass BIBLIOGRAPHY_LEAD the optional argument,
<kbd>ADJUST</kbd>.  (See
<a href="docprocessing.html#doc-lead-adjust">DOC_LEAD_ADJUST</a>
for an explanation of leading adjustment.)
</p>

<p>
The default for
<a href="docprocessing.html#printstyle">PRINTSTYLE <kbd>TYPESET</kbd></a>
is the prevailing document lead (16 by default), adjusted.
</p>

<div class="box-tip">
<p class="tip">
<span class="note">Note:</span>
Even if you give mom a <kbd>.DOC_LEAD_ADJUST&nbsp;OFF</kbd> command,
she will still, by default, adjust bibliography leading.  You
<i>must</i> enter <kbd>BIBLIOGRAPHY_LEAD&nbsp;&lt;lead&gt;</kbd>
with no <kbd>ADJUST</kbd> argument to disable this default
behaviour.
</p>
</div>

<h5 id="biblio-spacing" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Adjust the space between bibliography entries</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_SPACING</b> <kbd class="macro-args">&lt;amount of space&gt; </kbd>
</div>

<p class="requires">
&bull;&nbsp;Requires a <a href="definitions.html#unitofmeasure">unit of measure</a>
</p>

<p>
By default, mom inserts no space between bibliography entries.
If you&#8217;d prefer she add some, instruct her to do so with
BIBLIOGRAPHY_SPACING.  Say, for example, you want a half a linespace
between entries,
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_SPACING .5v
</span>
would do the trick.
</p>

<div class="box-tip">
<p class="tip">
<span class="note">Note:</span>
As with endnotes pages, inserting space between bibliography entries
will most likely result in hanging bottom margins.
</p>
</div>

<h5 id="singlespace-biblio" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Singlespace bibliography (TYPEWRITE only)</h5>

<div class="box-macro-args">
Macro: <b>SINGLESPACE_BIBLIOGRAPHY</b> <kbd class="macro-args">&lt;toggle&gt;</kbd>
</div>

<p>
If your 
<a href="docprocessing.html#printstyle">PRINTSTYLE</a>
is <kbd>TYPEWRITE</kbd> and you use TYPEWRITE&#8217;s default
double-spacing, bibliographies are double-spaced.  If your document
is single-spaced, bibliographies are single-spaced.
</p>

<p>
If, for some reason, you&#8217;d prefer that bibliographies be
single-spaced in an otherwise double-spaced document (including
double-spaced
<a href="rectoverso.html#collate">collated</a>
documents), invoke <kbd>.SINGLESPACE_BIBLIOGRAPHY</kbd> with with no
argument.
</p>

<h5 id="biblio-no-columns" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Turning off column mode during bibliography output</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_NO_COLUMNS</b> <kbd class="macro-args">&lt;toggle&gt;</kbd>
</div>

<p>
By default, if your document is set in
<a href="docprocessing.html#columns">columns</a>,
mom sets the bibliographies in columns, too.  However, if your
document is set in columns and you&#8217;d like the bibliographies
not to be, just invoke <kbd>.BIBLIOGRAPHY_NO_COLUMNS</kbd> with
no argument.  The bibliography pages will be set to the full page
measure of your document.
</p>

<p>
If you output bibliographies at the end of each document in a
<a href="rectoverso.html#collate">collated</a>
document set in columns, column mode will automatically be
reinstated for each document, even with BIBLIOGRAPHY_NO_COLUMNS
turned on.  In such circumstances, you must re-enable
BIBLIOGRAPHY_NO_COLUMNS for each separate collated document.
</p>

<h4 id="biblio-pagination" class="docs" style="margin-bottom: .5em;">2. Pagination of bibliographies</h4>

<h5 id="biblio-pagenum-style" class="docs" style="margin-top: 0; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Page numbering style</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_PAGENUM_STYLE</b> <kbd class="macro-args">DIGIT | ROMAN | roman | ALPHA | alpha</kbd>
</div>

<p>
Use this macro to set the page numbering style of bibliography
pages.  The arguments are identical to those for
<a href="headfootpage.html#pagenum-style">PAGENUM_STYLE</a>.
The default is <kbd>digit</kbd>.  You may want to change it to, say,
<kbd>alpha</kbd>, which you would do with
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_PAGENUM_STYLE alpha
</span>
</p>

<h5 id="biblio-first-pagenumber" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Setting the first page number of bibliographies</h5>

<div class="box-macro-args">
Macro: <b>BIBILOGRAPHY_FIRST_PAGENUMBER</b> <kbd class="macro-args">&lt;page # that appears on page 1 of bibliographies&gt;</kbd>
</div>

<p>
Use this macro with caution.  If the bibliography for a
<a href="rectoverso.html#collate">collated</a>
document is to be output at the document&#8217;s end,
BIBLIOGRAPHY_FIRST_PAGENUMBER tells mom what page number to put on
the first page of the bibliography.
</p>

<p>
However, if you&#8217;re outputting a bibliography at the end of each
section (chapter, article, etc) of a collated document,
you have to reset every section&#8217;s first page number after
<a href="rectoverso.html#collate">COLLATE</a>
and before
<a href="docprocessing.html#start">START</a>.
</p>

<h5 id="biblio-no-first-pagenum" class="docs" style="margin-top: -.25em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Omitting a page number on the first page of bibliographies</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_NO_FIRST_PAGENUM</b> <kbd class="macro-args">&lt;toggle&gt;</kbd>
</div>

<p>
This macro is for use only if
<a href="headfootpage.html#footers">FOOTERS</a>
are on.  It tells
<kbd><a href="#bibliography">BIBLIOGRAPHY</a></kbd>
not to print a page number on the first bibliography page.
Mom&#8217;s default is to print the page number.
</p>

<h5 id="suspend-pagination" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Suspending pagination during bibliography output</h5>

<div class="box-macro-args" style="margin-bottom: 1em;">
Macro: <b>SUSPEND_PAGINATION</b>
</div>

<div class="box-macro-args">
Macro: <b>RESTORE_PAGINATION</b>
</div>

<p>
SUSPEND_PAGINATION doesn&#8217;t take an argument.  Invoked
immediately prior to
<kbd><a href="#bibliography">BIBLIOGRAPHY</a></kbd>,
it turns off pagination for the duration of the bibliography.  Mom
continues, however to increment page numbers silently.
</p>

<p>
To restore normal document pagination after bibliographies, invoke
<kbd>.RESTORE_PAGINATION</kbd> (again, with no argument) immediately
after you&#8217;ve finished with your bibliography.
</p>

<h4 id="biblio-header-control" class="docs" style="margin-bottom: .5em;">3. Header/footer control</h4>

<h5 id="biblio-modify-hdrftr" class="docs" style="margin-top: 0; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Modifying what goes in the bibliography header/footer</h5>

<p style="margin-top: 0">
If you wish to modify what appears in the header/footer that appears
on bibliography pages, make the changes before you invoke
<a href="#bibliography"><kbd>.BIBLIOGRAPHY</kbd></a>,
not afterwards.
</p>

<p>
Except in the case of
<a href="docprocessing.html#doctype">DOCTYPE <kbd>CHAPTER</kbd></a>,
mom prints the same header or footer used throughout the document
on bibliography pages.  Chapters get treated differently in that,
by default, mom does not print the header/footer centre string
(normally the chapter number or chapter title.)  In most cases, this
is what you want.  However, should you not want mom to remove the
centre string from the bibliography pages headers/footers, or you
would like her to add one in cases where there hasn't been one
before (e.g. DOCTYPE DEFAULT) invoke
<kbd><a href="#bibliography-hdrftr-center">.BIBLIOGRAPHY_HEADER_CENTER</a></kbd>
with no argument.
</p>

<p>
An important change you may want to make is to put the word
&#8220;Bibliography&#8221; in the header/footer centre position.  To
do so, invoke
<br/>
<span class="pre-in-pp" style="margin-bottom: -1em;">
  .BIBLIOGRAPHY_HEADER_CENTER
  .HEADER_CENTER "Bibliography"
</span>
or
<span class="pre-in-pp" style="margin-top: -.5em;">
  .BIBLIOGRAPHY_FOOTER_CENTER
  .FOOTER_CENTER "Bibliography"
</span>
prior to invoking <kbd>.BIBLIOGRAPHY</kbd>.  
</p>

<div class="box-important">
<p class="tip">
<span class="important">Important:</span>
Unless you have a running centre string in your headers or footers, you must invoke
<span class="pre-in-pp" style="margin-top: -.5em;">
  <a href="#endnotes-hdrftr-center">.BIBLIOGRAPHY_HEADER_CENTER</a>
</span>
or
<span class="pre-in-pp" style="margin-top: -.5em;">
  <a href="#endnotes-hdrftr-center">.BIBLIOGRAPHY_FOOTER_CENTER</a>
</span>
in order for the centre string to appear, as demonstrated above.
</p>
</div>

<h5 id="biblio-hdrftr-center" class="docs" style="margin-top: 0; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Header/footer centre string when doctype is CHAPTER</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_HEADER_CENTER</b> <kbd class="macro-args">toggle</kbd>
</div>

<p>
If your
<a href="docprocessing.html#doctype">DOCTYPE</a>
is <kbd>CHAPTER</kbd> and you want mom to include a centre
string in the headers/footers that appear on bibliography
pages, or if you do not have a running header/footer
centre string in the body of the document, invoke
<kbd>.BIBLIOGRAPHY_HEADER_CENTER</kbd> (or
<kbd>.BIBLIOGRAPHY_FOOTER_CENTER</kbd>) with no argument before
defining the centre string .  Mom&#8217;s default is NOT to print the
centre string.
</p>

<p>
If, for some reason, having enabled the header/footer centre string
on bibliography pages, you wish to disable it, invoke the same macro
with any argument (<kbd>OFF, QUIT, Q, X</kbd>...).
</p>

<h5 id="biblio-allows-headers" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Allow headers on bibliography pages</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_ALLOWS_HEADERS</b> <kbd class="macro-args">&lt;none&gt; | ALL</kbd>
</div>

<p>
By default, if HEADERS are on, mom prints page headers on all
bibliography pages except the first.  If you don&#8217;t want her to
print headers on bibliography pages, do
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_ALLOWS_HEADERS OFF
</span>
If you want headers on every page including the first, do
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_ALLOWS_HEADERS ALL
</span>
</p>

<div class="box-tip">
<p class="tip">
<span class="note">Note:</span>
If FOOTERS are on, mom prints footers on every bibliography page.
This is a style convention.  In mom, there is no such beast as
BIBLIOGRAPHY_ALLOWS_FOOTERS OFF.
</p>
</div>

<h4 id="biblio-main-title" class="docs">4. Bibliography first-page title control</h4>

<h5 id="biblio-string" class="docs" style="margin-top: 1em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Title string</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_STRING</b> <kbd class="macro-args">&quot;&lt;title to print at the top of bibliography pages&gt;&quot;</kbd>
</div>
<p class="alias" style="margin-bottom: 0;">
<i>Alias:</i> <b>BIBLIOGRAPHY_HEADER</b>
</p>

<p>
By default, mom prints the word &#8220;BIBLIOGRAPHY&#8221; as a title
at the top of the first page of a bibliography.  If you want her to
print something else, invoke <kbd>.BIBLIOGRAPHY_STRING</kbd> with
the title you want, surrounded by double-quotes.
</p>

<p>
If you don&#8217;t want a title at the top of the first bibliography
page, invoke <kbd>.BIBLIOGRAPHY_STRING</kbd> with a blank argument
(either two double-quotes side by
side&mdash;<kbd>&quot;&quot;</kbd>&mdash;or no argument at all).
</p>

<h5 id="biblio-string-control" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Title string control macros and defaults</h5>

<div class="defaults-container" style="padding-bottom: 8px;">
<p class="defaults" style="padding-top: 6px;">
See
<a href="#control-macro-args">Arguments to the control macros</a>.
</p>
<span class="pre defaults">
.BIBLIOGRAPHY_STRING_FAMILY  default = prevailing document family; default is Times Roman
.BIBLIOGRAPHY_STRING_FONT    default = bold
.BIBLIOGRAPHY_STRING_SIZE*   default = +1
.BIBLIOGRAPHY_STRING_QUAD    default = centred

*Relative to the size of the bibliography text (set with BIBLIOGRAPHY_PT_SIZE)
</span>
</div>

<h5 id="biblio-string-placement" class="docs" style="margin-top: -1em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Title string placement</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_STRING_ADVANCE</b> <kbd class="macro-args">&lt;distance from top of page&gt;</kbd>
</div>

<p class="requires">
&bull;&nbsp;Argument requires a <a href="definitions.html#unitofmeasure">unit of measure</a>
</p>

<p>
By default, mom places the title (the docheader, as it were) of
bibliographies (typically "BIBLIOGRAPHY") on the same
<a href="definitions.html#baseline">baseline</a>
that is used for the start of
<a href="definitions.html#running">running text</a>.
If you&#8217;d prefer another location, higher or lower on the page
(thereby also raising or lowering the starting position of the
bibliography itself), invoke <kbd>.BIBLIOGRAPHY_STRING_ADVANCE</kbd>
with an argument stating the distance from the top edge of the page
at which you&#8217;d like the title placed.
</p>

<p>
The argument requires a unit of measure, so if you&#8217;d like the title
to appear 1-1/2 inches from the top edge of the page, you&#8217;d tell
mom about it like this:
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_STRING_ADVANCE 1.5i
</span>
</p>

<h5 id="biblio-string-underline" class="docs" style="margin-top: -1em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Title string underscoring</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_STRING_UNDERSCORE</b> <kbd class="macro-args">[DOUBLE] [&lt;underline weight&gt; [&lt;underline gap&gt; [&lt;distance between double rules]]] | &lt;none&gt; | &lt;anything&gt;</kbd>
</div>

<p class="alias" style="margin-bottom: 0;">
<i>Alias:</i> <b>BIBLIOGRAPHY_STRING_UNDERLINE</b>
</p>

<p class="requires">
&bull;&nbsp;The argument
<span style="font-style: normal"><kbd>&lt;underscore weight&gt;</kbd></span>
must not have the
<a href="definitions.html#unitofmeasure">unit of measure</a>,
<span style="font-style: normal;"><kbd>p</kbd></span>, appended to it
</p>

<p>
Invoked without an argument,
<kbd>.BIBLIOGRAPHY_STRING_UNDERSCORE</kbd> will place a single rule
underneath the bibliography&#8217;s first-page title.  Invoked with the
argument, <kbd>DOUBLE</kbd>, BIBLIOGRAPHY_STRING_UNDERSCORE will
double-underscore the title.  Invoked with any other non-numeric
argument, (e.g., <kbd>OFF, NO, X</kbd>, etc.) the macro disables
underlining of the title.
</p>

<p>
In addition, you can use BIBLIOGRAPHY_STRING_UNDERSCORE to control
the weight of the underscore rule(s), the gap between the title and
the underscore, and, in the case of double-underscores, the distance
between the two rules.
</p>

<p>
Some examples:
<br/>
<span class="pre-in-pp">
  .BIBLIOGRAPHY_STRING_UNDERLINE 1
      - turn underlining on; set the rule weight to 1 point

.BIBLIOGRAPHY_STRING_UNDERLINE 1 3p
      - turn underlining on; set the rule weight to 1 point; set
        the gap between the string and the underline to 3 points
  
  .BIBLIOGRAPHY_STRING_UNDERLINE DOUBLE .75 3p
      - turn double-underlining on; set the rule weight to 3/4 of
        a point; set the gap between the string and the upper
        underline to 3 points; leave the gap between the upper
        and the lower underline at the default
  
  .BIBLIOGRAPHY_STRING_UNDERLINE DOUBLE 1.5 1.5p 1.5p
      - turn double-underlining on; set the rule weight to 1-1/2
        points; set the gap between the string and the upper
        underline to 1-1/2 points; set the gap between the upper
        and the lower underline to 1-1/2 points
</span>
Note, from the above, that in all instances, underscoring (single or
double) is enabled whenever BIBLIOGRAPHY_STRING_UNDERSCORE is used
in this way.
</p>

<p>
By default, mom double-underscores the title if your
<a href="docprocessing.html#printstyle">PRINTSTYLE</a>
is <kbd>TYPEWRITE</kbd>.
</p>

<h5 id="biblio-string-caps" class="docs" style="margin-top: -.5em; margin-bottom: .5em; margin-left: .5em;">&bull;&nbsp;Title string capitalization</h5>

<div class="box-macro-args">
Macro: <b>BIBLIOGRAPHY_STRING_CAPS</b> <kbd class="macro-args">toggle</kbd>
</div>

<p>
Invoked by itself, <kbd>.BIBLIOGRAPHY_STRING_CAPS</kbd> will
automatically capitalize the bibliography first-page title.  Invoked
with any other argument, the macro disables automatic capitalization
of the title.
</p>

<p>
If you&#8217;re generating a table of contents, you may want the
bibliography first-page title to be in caps, but the toc entry in
caps/lower case.  If the argument to
<kbd><a href="#bibliography-string">BIBLIOGRAPHY_STRING</a></kbd>
is in caps/lower case and BIBLIOGRAPHY_STRING_CAPS is
on, this is exactly what will happen.
</p>

<p>
Mom&#8217;s default is to capitalize the bibliography first-page
title.
</p>

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