Kamala,A <br/><br/>
Environmental Engineering:  water supply sanitary engineering and pollution 
A Kamala 
 - New Delhi  Tata McGraw-Hill  1988 
 - 271p. 
<br/><br/> P.B 
<br/><br/><label>ISBN: </label>0074517082 
<br/><br/><label>Dewey Class. No.: </label>628 KAM