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.,  c1987. 
 - viii, 345 pages :  illustrations ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>8120402154 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewege -- Purification.
<br/><br/><label>Dewey Class. No.: </label>628.3 RAO