Gray, N. F. <br/><br/>
Water Technology  

 - New Delhi :   Viva Books Private Limited,   2000. 
 - vii, 538 p. :   ill.;   24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9788176491532 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality management<br/> Sewage disposa<br/> Freshwater
<br/><br/><label>Dewey Class. No.: </label>365 GRA