Ellms, Joseph W. <br/><br/>
Water Purification  

 - 2nd 
 - New York :   McGraw-Hill,   1928 
 - XII, 594 p.  : ill 
<br/><br/>Includes Index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water Purification
<br/><br/><label>Dewey Class. No.: </label>628.161  / ELL