THE NALCO WATER HANDBOOK/  
ED. IN CHIEF  FRANK N. KEMMER, JOHN MCCALLION. 
 - NEW YORK ; MEXICO:   MCGRAW-HILL  1979 
 - PAG VARIA  24 CM. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1.AGUA - MANUALES, ETC.
<br/><br/><label>Dewey Class. No.: </label>C 628.162 N35