Water supply and pollution control / 
Warren Viessman ... [et al.]. 
 - 8th ed. 
 - New Delhi :  PHI Learning,   c2009. 
 - xv, 843 pages :  illustrations ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9788120343702 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewerage--Purification.<br/>Water--Pollution--Prevention.
<br/><br/><label>Dewey Class. No.: </label>628.1 WAT