nix-gh/doc/manual/book.xml

<?xml version="1.0"?>
<!DOCTYPE book SYSTEM "/nix/current/xml/dtd/docbook/docbookx.dtd"
[
<!ENTITY introduction SYSTEM "introduction.xml">
<!ENTITY installation SYSTEM "installation.xml">
<!ENTITY nix-reference SYSTEM "nix-reference.xml">
<!ENTITY troubleshooting SYSTEM "troubleshooting.xml">
<!ENTITY bugs SYSTEM "bugs.xml">
]>

<book>
  <title>Nix: The Manual</title>

  &introduction;
  &installation;

  <chapter>
    <title>A Guided Tour</title>
    <para>
      Bla bla
    </para>
  </chapter>

  <chapter>
    <title>Fix Language Reference</title>
    <para>
      Bla bla
    </para>
  </chapter>

  <chapter>
    <title>Nix Syntax and Semantics</title>
    <para>
      Bla bla
    </para>
  </chapter>

  <appendix>
    <title>Command Reference</title>
    &nix-reference;
  </appendix>

  &troubleshooting;
  &bugs;

</book>