S. N. Kaul, Arvind Kumar <br/><br/>
Waste Water Engineering/ 

 - New Delhi  Paragon Computers  2012 
 - 1532-268 p.:  25 cm. 
<br/><br/><label>ISBN: </label>8176489891 
<br/><br/><label>Universal Decimal Class. No.: </label>363.7284