Pizzi, Nicholas G. <br/><br/>
Filter operations field guide 
Eckhard Worch 
 - Denver  American Water Works Association  2006 
 - vi, 57 p. 
<br/><br/> Includes references and index 
<br/><br/><label>ISBN: </label>1583214437 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-purification-filtration
<br/><br/><label>Dewey Class. No.: </label>628.164  / PIZ