Gray, N. F. <br/><br/>
Water technology :  an introduction for environmental scientists and engineers / 
Nick Gray 
 - 2nd ed. 
 - Oxford :  Elsevier Butterworth-Heinemann,  2005 
 - xx, 645 p. :  ill., maps ;  25 cm. 
<br/><br/> Previous ed.: London: Arnold, 1999 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0750666331 (pbk.)  RM179.82 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water supply<br/>Water-supply engineering<br/>Aquatic biology