Rao. M. N.  <br/><br/>
Waste water treatment /  
by M. N. Rao and A. K. Datta 
 - 3rd ed.  
 - New Delhi :   CBS Publication,   2020.  
 - xi, 388 p. ;   21cm.  
<br/><br/>Includes bibliographical references and index.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waste water----treatment
<br/><br/><label>Dewey Class. No.: </label>628.162  / RAO/W