River valleys development board <br/><br/>
Walawe symposium 

 -    1968 
 - 80p., ill.,6s27 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Uda walawe multipurpose reservoir project <br/>River <br/>Irrigation
<br/><br/><label>Universal Decimal Class. No.: </label>(x)626.13  / WAL