Rao, P. Venugopala <br/><br/>
Textbook of environmental engineering / 
P. Venugopala Rao 
 - New Delhi, India :  Prentice-Hall of India,  2002 
 - xii, 268 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>8120319303 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution<br/>Environmental engineering<br/>Sanitary engineering