Bhatnagar, Aditya <br/><br/>
Fundamentals of Environmental Studies / 
by Aditya Bhatnagar  
 - Jaipur:  Oxford Book Company,  2010 
 - p.306 
<br/><br/><label>ISBN: </label>9789380179674 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Environment
<br/><br/><label>Dewey Class. No.: </label>577  / BHA-F