ශ්‍රි ලංකා 
 Sri Lanka 

 - Colombo  Government Press  1957 
 -  31P.,ill.,27 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydroelectricity<br/>Irrigation Systems<br/>Literature Conference-Kotte
<br/><br/><label>Universal Decimal Class. No.: </label>ජ93