Singh, Darshan. <br/><br/>
Basic chemistry for water and wastewater operators / 
Darshan Singh Sarai 
 - Rev. ed. 
 - Denver, CO :  American Water Works Association,  2005 
 - x, 196 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>1583211489 9781583211489 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry