Hammer, Mark J. and Hammer, Mark J. Jc. <br/><br/>
Water and waste water technology / 

 - 6 th. 
 - New Delhi,  Prentice Hall,  c2008. 
 - ix,553 p. ;  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>9788120334991 
<br/><br/><label>Dewey Class. No.: </label>628.121