Rai, B. N <br/><br/>
Environmental science and engineering : selected topics 
S N Kaul,B.N.Rai, D.R.Saini, Yogesh Chandra Sharma 
 - New Delhi  [publisher not identified]  2013 
 - xiii, 621 pages;23cm 
<br/><br/><label>ISBN: </label>9788170358114 
<br/><br/><label>Dewey Class. No.: </label>628 KAU