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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="5308" ns="0" title="B" />
      <p pageid="5154" ns="0" title="Backovsko" />
      <p pageid="5084" ns="0" title="Bajrace" />
      <p pageid="3760" ns="0" title="Balada conducatorolui" />
      <p pageid="4864" ns="0" title="Balada lui Corbea" />
      <p pageid="5443" ns="0" title="Balada lui Grigore Kiazim" />
      <p pageid="2856" ns="0" title="Balkan Party 2005" />
      <p pageid="2962" ns="0" title="Balkan Party 2006" />
      <p pageid="3228" ns="0" title="Balkan Party 2006/Photos" />
      <p pageid="3654" ns="0" title="Balkan Party 2007" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Balkan Party 2007/Photo" />
  </query-continue>
</api>