Sharma, P. D. <br/><br/>
Ecology and Environment / 
P. D. Sharma. 
 - 7th ed. 
 - New Delhi :  Rastogi Publications,  2000. 
 - xv, 660 p. :  ill. ;  24 cm. 
<br/><br/> Includes Index. 
<br/><br/><label>ISBN: </label>817133475X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>577  / SHE