DR. GUPTA, K M. <br/><br/>
ENVIRONMENT AND ECOLOGY  3RD ED.  ENGLISH 
AUTHOR 
 - 3RD ED.  PAPERBACK 
 - DELHI  UMESH  2008 
 - 3RD ED.326 P P .  PAPERBACK  PAPERBACK 
<br/><br/><label>LC Class. No.: </label>671.130GUP  / 186 
<br/><br/><label>Dewey Class. No.: </label>671.130GUP  / 186