Hammer, Mark J. <br/><br/>
Water and wastewater technology / 
Mark J. Hammer, Mark J. Hammer, Jr. 
 - 7th ed. 
 - Boston :  Pearson Education,  2012 
 - 460 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780132719889 (International ed.) 9780135114049 (hbk. : alk. paper) 0135114047 (hbk. : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply engineering<br/>Sewage disposal