Gunaratne, M. M. <br/><br/>
Parisara vidyava ha e tula gabvi ati ekiyata dharmaya 

 - Colombo  Godage  1995 
 - xii, 311p. 
<br/><br/><label>ISBN: </label>9789552015106 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGY<br/>ENVIRONMENTAL SCIENCE
<br/><br/><label>Dewey Class. No.: </label>577  / G85