AMERICAN WATER WORKS ASSOCIATION <br/><br/>
PROCEEDINGS: AMERICAN WATER WORKS ASSOCIATION: DEDICATED TO SAFE DRINKING WATER, 

 - DENVER  Awwa Research Foundation  1996 
 - vii+617p., 22x14cms. 
<br/><br/><label>ISBN: </label>0898678803 
<br/><br/><label>Dewey Class. No.: </label>627.48 A512.1-.5