You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allpages>
      <p pageid="1965" ns="0" title="BUILD THE COMMUNITY" />
      <p pageid="1772" ns="0" title="Back" />
      <p pageid="1619" ns="0" title="Barriers to Information Access" />
      <p pageid="1907" ns="0" title="Belem WSF 2009" />
      <p pageid="1587" ns="0" title="Beyond being ivory towers" />
      <p pageid="1929" ns="0" title="Bienvenido ES" />
      <p pageid="1921" ns="0" title="Bienvenue FR" />
      <p pageid="2582" ns="0" title="Boletim WSF 19 March 2011" />
      <p pageid="1537" ns="0" title="COllguim on GLobal CIvil society movements" />
      <p pageid="1793" ns="0" title="Campaign for the right to information" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Carolyne Wamae" />
  </query-continue>
</api>