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="Leasing" />
  </query-continue>
  <query>
    <pages>
      <page pageid="77" ns="0" title="Bullet Resistant Cameras (Silent Witness)" />
      <page pageid="17" ns="0" title="CCTV" />
      <page pageid="557" ns="0" title="CCTV Installation" />
      <page pageid="168" ns="0" title="Contact us" />
      <page pageid="37" ns="0" title="Data Protection Act Compliant Media Kits" />
      <page pageid="41" ns="0" title="Data Protection Act Compliant Signage" />
      <page pageid="164" ns="0" title="Equipment Menu" />
      <page pageid="482" ns="0" title="Fundamentals of Video" />
      <page pageid="218" ns="0" title="Green CCTV using Renewable Energy" />
      <page pageid="671" ns="0" title="Installing CCTV" />
    </pages>
  </query>
</api>