The hydrogeochemical Atlas of Sri Lanka :  English. 
Dissanayake, C.B., Weerasooriya, S.V.R. 
 - Colombo :  Natural Resources Energy and Science Authority, 
 - 106 p.:  ill. maps;  30cm. 
<br/><br/><label>ISBN: </label>9555900019 
<br/><br/><label>Dewey Class. No.: </label>x551.588 (084.4)  / HYD