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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <alllinks galcontinue="Continued_Efforts_are_Needed_to_Protect_Information_Systems_from_Evolving_Threats" />
  </query-continue>
  <query>
    <pages>
      <page pageid="231" ns="0" title="Behavioral Economics" />
      <page pageid="142" ns="0" title="Best Practices for Data Protection and Privacy" />
      <page pageid="108" ns="0" title="Beyond Fear" />
      <page pageid="262" ns="0" title="Book" />
      <page pageid="50" ns="0" title="Books" />
      <page pageid="219" ns="0" title="Cloud Computing" />
      <page pageid="23" ns="0" title="Combatant Status and Computer Network Attack" />
      <page pageid="212" ns="0" title="Communications" />
      <page pageid="15" ns="0" title="Computer Network Attack and the Use of Force in International Law" />
      <page pageid="18" ns="0" title="Computers and War" />
    </pages>
  </query>
</api>