Sharma, J.P. <br/><br/>
Environmental Studies (For Undergraduate Classes in Science, Commerce, Humanities, Engineering, Medicine, Pharmacy, Management and Law) 

 - 3rd Edition 
 - New Delhi  University Science Press  2009 
 - 219p. 
<br/><br/><label>ISBN: </label>9788131806418 
<br/><br/><label>Dewey Class. No.: </label>344.046  / SHA/E