Viessman, Warren. <br/><br/>
Water supply and pollution control /     
Warren Viessman, Mark J. Hammer 
 - 7th ed. 
 - Delhi :   Pearson Education,  2005. 
 - 887 p. ; 23 cm. 
<br/><br/>  
<br/><br/><label>ISBN: </label>8129711540 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water --Pollution.--<br/>Water --Supply. --<br/>Water Pollution --Prevention & control. --