Biological nutrient removal (BNR) operation in wastewater treatment plants 
/by Water Environment Federation and American Society of Civil Engineers 
 - New York :  McGraw Hill  2006 
 - xliv, 597 p.  ilus. 
 - WEF manual of practice  ; 29 .
 - WEF manual of practice  ; 29 .
<br/><br/><label>ISBN: </label>0071464158 
<br/><br/><label>LCCN: </label>95501 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aguas residuales.<br/>Aguas residuales--Purificacion.
<br/><br/><label>Dewey Class. No.: </label>628.3  / W291