Rao, M. Narayana. <br/><br/>
Waste water treatment : rational methods of design and industrial practices / 
M. Narayana Rao and Amal K. Datta. 
 - 2nd ed. 
 - New Delhi :   Oxford & IBH Pub. Co.,   c1987. 
 - 345 p. :  ill. (some fold.) ;   21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>8120402154 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water --Purification
<br/><br/><label>Dewey Class. No.: </label>628.162  / RAW 1987