Rao  <br/><br/>
Textbook of environmental engineering  
/ P. Venugopala Rao. 
 - New Delhi  Prentice-Hall of india Private Limited  2002. 
 - xii, 268p.  ill.  24cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>8120319303  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental engineering
<br/><br/><label>Dewey Class. No.: </label>628 RAO 2002