Balakrishna, P. <br/><br/>
Agriculture and biodiversity 
/ by P. Balakrishna. 
 - Sri Lanka :  IUCN The World Conservation Union,  2001. 
 - v, 68 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>9558177083 
<br/><br/><label>Dewey Class. No.: </label>630 BAL