KUMAR, H.D. <br/><br/>
MODERN CONCEPTS OF ECOLOGY 

 - 2nd Ed. 
 - Delhi  Vikas Publishing House Pvt. Ltd., Delhi   1981 
<br/><br/><label>ISBN: </label>0 7069 1246 2 
<br/><br/><label>Dewey Class. No.: </label>577  / KUM/MO