Hammer,Mark J. <br/><br/>
Water and wastewater technology / 
Hammer,Mark J. 
 - 2nd ed. 
 - New Delhi:  Prentice Hall career & Technology,  1991. 
 - ix-550p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0139501061 
<br/><br/><label>Dewey Class. No.: </label>628.1 HAM