Har Darshan Kumar <br/><br/>
Modern concepets of ecology 
Har Darshan Kumar 
 - 7th rev and enl ed. 
 - New Delhi  Vikas Pub.  1992 
 - x,377 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>574.5  / HAR N2