Agarwala, S. P. <br/><br/>
Environmental studies 

 - New Delhi  Narosa Publishing House  2006 
 - 220p. 
<br/><br/><label>ISBN: </label> RS 250.00 
<br/><br/><label>Source: </label> RS 250.00 
<br/><br/><label>Dewey Class. No.: </label>304.2 AGA