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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Resource Kit" />
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Internet Communications Security/Email over SSL" />
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Password management" />
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Internet Communications Security" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Internet Communications Security/VoIP" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Internet Communications Security/Vaultletsoft" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Надежные пароли" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Internet Communications Security/Instant Messaging" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Full English version" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Resource Kit/Questionnaire" />
      </results>
    </querypage>
  </query>
</api>