You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Table_of_Contents" />
  </query-continue>
  <query>
    <pages>
      <page pageid="237" ns="0" title="Criminals and Criminal Organizations" />
      <page pageid="167" ns="0" title="Critical Infrastructure Protection" />
      <page pageid="164" ns="0" title="Cyber-Apocalypse Now" />
      <page pageid="29" ns="0" title="Cyber Operations" />
      <page pageid="11" ns="0" title="Cybersecurity Annotated Bibliography" />
      <page pageid="178" ns="0" title="Emerging Threats to Internet Security" />
      <page pageid="190" ns="0" title="Government Organizations" />
      <page pageid="31" ns="0" title="Government Reports and Documents" />
      <page pageid="120" ns="0" title="Keyword Index and Glossary of Core Ideas" />
      <page pageid="118" ns="0" title="Modeling Cyber-Insurance" />
    </pages>
  </query>
</api>