Gunasekara, Sman Pushpa  <br/><br/>
ජල සම්පත   

 - S.Godage Publisher   Colombo   2015 
 - 104p  1 
 - 2023-11-29 
<br/><br/><label>ISBN: </label>978-955-30-5703-7 
<br/><br/><label>Nat. Bib. No.: </label>0005465 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>GUN 
<br/><br/><label>Universal Decimal Class. No.: </label>634