Powell, Sheppard T <br/><br/>
Water conditioning for industry 
Sheppard T Powell 
 - N.Y  McGraw-Hill Book Company  1954 
 - 548p. 
<br/><br/><label>ISBN: </label>07-050572-1 
<br/><br/><label>Subjects--Index Terms: </label>Water conditioning  Water quality 
<br/><br/><label>Dewey Class. No.: </label>628.1  / POW