Hardenbergh, W. A. <br/><br/>
Water supply and purification / 
W. A. Hardenbergh 
 - 3rd ed. 
 - Pennsylvania :  International Textbook Company,  1952 
<br/><br/>Includes references & indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water supply
<br/><br/><label>Dewey Class. No.: </label>628.1  / HAR