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"?>
    <alltransclusions gatcontinue="Procedures|90" />
      <page pageid="75" ns="100" title="Procedures:9999" />
      <page pageid="79" ns="10" title="Template:Procedures Boilerplate" />
      <page pageid="83" ns="100" title="Procedures:6100 - Uniform Records and Accounts" />
      <page pageid="84" ns="100" title="Procedures:6105 - Authorization to Use Facsimile Signature" />
      <page pageid="85" ns="100" title="Procedures:6106 - Electronic Transfer of Funds" />
      <page pageid="86" ns="100" title="Procedures:6110 - Federal, State, Local, Private Grants" />
      <page pageid="87" ns="100" title="Procedures:6140 - Public Depository" />
      <page pageid="88" ns="100" title="Procedures:6144 - Investments" />
      <page pageid="89" ns="100" title="Procedures:6145 - Borrowing" />
      <page pageid="686" ns="10" title="Template:Columns-list" />