Clark, John. W <br/><br/>
Water supply and Pollution control 

 - 3rd 
 - New York  Harper & Row  1977 
 - xviii, 857 p.   
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<br/><br/><label>Subjects--Index Terms: </label>Pollution control  Pollution control industry  Pollution 
<br/><br/><label>Dewey Class. No.: </label>628