Subrahmanyam, N.S <br/><br/>
Ecology 

 - 2 
 - New Delhi  Narosa Publishing House  2000 
 - ch-A-3 
<br/><br/><label>ISBN: </label>9788173197406 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGY
<br/><br/><label>Dewey Class. No.: </label>577.22 SUB/E