AMERICAN WATER WORKS ASSOCIATION <br/><br/>
PROCEEDING :AMERICAN WATER WORKS ASSOCIATION,1995,ANNUAL CONFERENCE(ANAHEIM) VOL 

 - DENVER  Awwa Research Foundation  1995 
 - 537p.,22X14cms. 
<br/><br/><label>ISBN: </label>0-89867-832-3 
<br/><br/><label>Dewey Class. No.: </label>627.480 6 A5121