Kamala, A <br/><br/>
Environmental engineering :   water supply, sanitary engineering and pollution 
Kamala, A and Kantha Rao 
 - New Delhi:  Tata McGraw Hill,  1988. 
<br/><br/><label>ISBN: </label>0074517082 
<br/><br/><label>Dewey Class. No.: </label>628  / KAM