Automation of wastewater treatment facilities / 
[prepared by Automation of Wastewater Treatment Facilities Task Force of the Water Environment Federation] 
 - 3rd ed. 
 - Alexandria, Va. :  New York ;  Toronto :  Water Environment Federation ;  McGraw-Hill,  c2007 
 - xxx, 546 p. :  ill. ;  25 cm. 
 - WEF manual of practice ;  no. 21 .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0071479376 9780071479370 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Factory and trade waste sewage<br/>Water--Purification