Sharma, P. D. <br/><br/>
Ecology and Environment 
P. D. Sharma 
 - 7th ed. 
 - Meerut  Rastogi Publications  2005 
 - xv, 660p. 
<br/><br/><label>ISBN: </label>8171338143 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>577 SHA