Ryan, William John. <br/><br/>
Water treatment and purification Technology 
William J. Ryan. 
 - Jodhpur,India  Agrobios.  [c1999-2000] 
 - ix, 270 p.  illus., diagrs. (1 fold.)  21 cm. 
<br/><br/> H.B 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Purification.<br/>Feed-water purification.<br/>MCE
<br/><br/><label>Dewey Class. No.: </label>628.162 RYA  / RYA