Das Mohapatra, Gourkrishna <br/><br/>
Environment and Ecology   
Gourkrishna Das Mohapatra  
 - Kolkata :  Vikas Pub.  2007 
<br/><br/><label>ISBN: </label>8125929029  140.00 
<br/><br/><label>Dewey Class. No.: </label>333.7  / D229