 there hasn&#8217;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;">
  .BIBLIO