Varma, P. S. <br/><br/>
Principles Of Ecology: 

 - 4 
 - New Delhi  S. Chand & Co.  1989 
 - vii,591p. 
 - Environmental Biology .
<br/><br/><label>Subjects--Topical Terms: </label><br/>G:5
<br/><br/><label>Dewey Class. No.: </label>G:5  / L9