Duggal K N <br/><br/>
Elements of Environmental Engineering 

 - 1 
 - New Delhi  S.Chand  2009 
<br/><br/><label>ISBN: </label>978-8121915472 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CE
<br/><br/><label>Dewey Class. No.: </label>628.5