Water quality and treatment  a handbook of public water supplies 
prepared of The American Water Works Association, Inc. 
 - 3rd edition 
 - New York  McGraw-Hill  1971 
 - 654p. ill. 24cm 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0070015392 
<br/><br/><label>LCCN: </label>71-116657 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Purification<br/>Water supply--United States