Khanna D R <br/><br/>
Waste Products and pollution 

 - New Delhi  Discovery Publishing House  2012 
 - 219 
<br/><br/><label>ISBN: </label>9789350561294 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Pollution<br/>Waste Products
<br/><br/><label>Dewey Class. No.: </label>363.728 KHA