Khanna, D. R. <br/><br/>
waste products and pollution 

 - New Delhi  Discovery Publishing House  2012 
 - 219p. 
<br/><br/><label>ISBN: </label> RS 1200.00 
<br/><br/><label>Source: </label> RS 1200.00 
<br/><br/><label>Dewey Class. No.: </label>363.73 KHA