Sharma, P.D. <br/><br/>
Ecology and Environment: a textbook for university students 
P.D. Sharma 
 - 11th rev. 
 - Meerut  Rastogi Pub.  2011 
 - xx, 643 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>8171339050 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology - Environmental aspects<br/>Environmental Sciences
<br/><br/><label>Dewey Class. No.: </label>574.5  / SHA P11