International standard units for water and wastewater processes / 
prepared by the International Standard Units for Water and Wastewater Processes Task Force of the Water Environment Federation, the American Water Works Association, and the International Water Association 
 - Alexandria, Va. USA :  Water Environment Federation,  2011 
 - xvii, 90 p. ;  26 cm. 
 - WEF manual of practice ;  no. 6 .
 - Manual of practice ;  no. 6 .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781843395447 1843395444 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage disposal plants--Standards<br/>Water treatment plants--Standards