Ryan William,J. <br/><br/>
Water treatment and purification 
William J. Ryan 
 - Jodhpur:  Agrobios,  2007. 
 - 270p. 
<br/><br/> Include Index 
<br/><br/>HP 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>8177540025 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-purification<br/>Water quality management
<br/><br/><label>Dewey Class. No.: </label>628  / RYW