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>
    <allpages apcontinue="BK2060_Wetenschapsleer_1" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="956" ns="0" title="BASF micronal PCM" />
      <p pageid="1479" ns="0" title="BIA Farmacell Scheidingswand" />
      <p pageid="1478" ns="0" title="BIA Gips Scheidingswand" />
      <p pageid="466" ns="0" title="BK2000 Ontwerpproject 2: Gebouw en constructie" />
      <p pageid="467" ns="0" title="BK2010 Architectonische basisbegrippen en gebouwenleer 2" />
      <p pageid="468" ns="0" title="BK2020 Stedenbouwkundige basisbegrippen 2" />
      <p pageid="469" ns="0" title="BK2030 Architectuur-, stedenbouw- en kunstgeschiedenis 2" />
      <p pageid="75" ns="0" title="BK2041" />
      <p pageid="465" ns="0" title="BK2042 Technologie 2a, Klimaatontwerp 2" />
      <p pageid="470" ns="0" title="BK2050 Bouwprocesmanagement 1" />
    </allpages>
  </query>
</api>