Punmia, B C  , <br/><br/>
Wastewater Engineering :   Including Air pollution /  
By B C Punmia and Others .  
 - 2nd Ed. 
 - New Delhi  Laxmi Publication  2009 
 - xv, 660p:  20cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering<br/>Environmental Engineering<br/>Wastewater Engineering<br/>Air  polution
<br/><br/><label>Dewey Class. No.: </label>628.43