P.G.Cooray <br/><br/>
Geology of the country arround  Battulu Oya & Putthlam 

 - Dehiwala<br/>  Geological survey  1995 
 - 52, ill 
<br/><br/><label>ISBN: </label>9559323024 
<br/><br/><label>Dewey Class. No.: </label>551.7009  / COO