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"?>
    <allfileusages gafcontinue="B0055T357G.jpg|8880" />
      <page pageid="5671" ns="0" title="Beautiful Americans by Lucy Silag" />
      <page pageid="6594" ns="0" title="My Name Is Salma by Fadia Faqir" />
      <page pageid="8073" ns="0" title="Vanished by Joseph Finder" />
      <page pageid="12605" ns="0" title="Passing the 11+ with NLP: NLP Strategies for Supporting Your 11 Plus Student by Judy Bartkowiak and Carolyn Fitzpatrick" />
      <page pageid="13338" ns="0" title="Dead Man&#039;s Grip by Peter James" />
      <page pageid="13610" ns="0" title="Back Dated by Chris Niblock" />
      <page pageid="14311" ns="0" title="Glow by Amy Kathleen Ryan" />
      <page pageid="20713" ns="0" title="The Joy Luck Club by Amy Tan" />
      <page pageid="27352" ns="0" title="Gallery Whispers (Bob Skinner Mysteries) by Quintin Jardine" />
      <page pageid="27970" ns="0" title="Bad Boy by Peter Robinson" />