Batra, Sanjay Kumar <br/><br/>
Environmental studies -CBCS  Environmental studies -CBCS._2nd Ed, New Delhi : Taxmann Publications, 2016 
Sanjay Kumar Batra 
 - 2nd 
 - New Delhi  Taxmann Publications  2016 
<br/><br/><label>Dewey Class. No.: </label>301.31