Biological nutrient removal (BNR) operation in wastewater treatment plants / 
prepared by the Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants Task Force of the Water Environment Federation and the American Society of Civil Eng 
 - New York :  McGraw-Hill,  c2006 
 - xliv, 597 p. :  ill. ;  25 cm. 
 - WEF manual of practice ;  no. 29 ASCE/EWRI manuals and reports on engineering practice ;  no. 109. .
<br/><br/> "Manual of practice no. 30"--Cover 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0071464158 :  USD 125.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Nutrient removal
<br/><br/><label>Dewey Class. No.: </label>628.357