Sharma , Dr. J.P. <br/><br/>
Environmental Studies: By Sharma , Dr. J.P. 

 - 3rd Ed. 
 - New Delhi  University Press  2013 
 - 221p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>Dewey Class. No.: </label>363.7  / SHA/ENV