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>
    <pageswithprop pwpcontinue="1188" />
  </query-continue>
  <query>
    <pageswithprop>
      <page pageid="7" ns="0" title="Alte sisteme:Referral/en" value="Other Systems:Referral" />
      <page pageid="139" ns="0" title="Vehicule Cash/en" value="Standard Vehicles" />
      <page pageid="163" ns="0" title="Vehicule Premium/en" value="Premium Vehicles" />
      <page pageid="1149" ns="0" title="Case:Descriere Generala/ro" value="Case:Descriere Generala" />
      <page pageid="1154" ns="0" title="Case:Descriere Generala/en" value="Houses:General Presentation" />
      <page pageid="1159" ns="0" title="Pagina principală/ro" value="Pagina principală" />
      <page pageid="1164" ns="0" title="Pagina principală/en" value="Main Page" />
      <page pageid="1171" ns="0" title="Main Page/ro" value="Main Page" />
      <page pageid="1175" ns="0" title="Main Page/en" value="Main Page" />
      <page pageid="1183" ns="0" title="Bizuri:Descriere Generala/ro" value="Bizuri:Descriere Generala" />
    </pageswithprop>
  </query>
</api>