Upgrading and retrofitting water and wastewater treatment plants / 
Water Environment Federation 
 - Alexandria, VA: WEF Press,   2005 
 - xxi, 230 p.;   25 cm. 
 - WEF manual of practice; no. 28 .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0071453032 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage disposal plants--Upgrading<br/>Sewage disposal plants--Retrofitting