J.V.B. Wells. <br/><br/>
Quality of surface waters of the United States, 1957. /  
J.V.B. Wells. 
 - Washington:   D.C. U.S. Dept. of the Interior, Geological Survey,   1957 
 - Various pages:   Illustrations, tables,   23cm 
 - Geological survey water-supply paper 1503 .
<br/><br/>Scop of work Cooperation Division of work 
<br/><br/><br/>In English 
<br/><br/> Pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality | Water-supply | West United States
<br/><br/><label>Dewey Class. No.: </label>631 QUA 1957