Panshu ha Jala Sanrakshana Kshethra Athpotha [Sinhala language] 

 - Peradeniya  Department of Agriculture  [n.d.] 
 - viii, 69 p. 
<br/><br/><label>ISBN: </label>9789559282273 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply
<br/><br/><label>Dewey Class. No.: </label>628.1  / PAN