National wetland directory of Sri lanka 

 -  Central environment authority  2006 
 - 341 ill.,  30 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks <br/>Tank <br/>Wetland <br/>Lake <br/>Reef <br/>Biodiversity
<br/><br/><label>Universal Decimal Class. No.: </label>591.5(038)  / NAT