Central environmental authority <br/><br/>
Wetland site report & conservation management plant : Wirawila-Tissa sanctuary & Yoda wewa 

 -  Central environmental authority  1994 
 - 77p.,map., ill.,  30 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology <br/>Ministry of transport, highways, environment and women's affaris <br/>Soil map of the Debara-Tissa -Yoda wewa area
<br/><br/><label>Universal Decimal Class. No.: </label>581.52  / CEN