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>
    <allredirects garcontinue="White_Cloud_and_Safe_Cig_Review" />
  </query-continue>
  <query>
    <pages>
      <page pageid="16" ns="0" title="Bohaterowie" />
      <page pageid="571" ns="0" title="Cheap And Great Electronic Cigarette" />
      <page pageid="556" ns="0" title="E cigs" />
      <page pageid="562" ns="0" title="Electronic Cigarette Starter Kits" />
      <page pageid="560" ns="0" title="Electronic cigarettes" />
      <page pageid="566" ns="0" title="Free blu cigs" />
      <page pageid="558" ns="0" title="Free electronic cigarette" />
      <page pageid="425" ns="0" title="Misje" />
      <page pageid="530" ns="0" title="Przekonanie" />
      <page pageid="569" ns="0" title="Smoketip and njoy e cig brands" />
    </pages>
  </query>
</api>