Trivedi, P.R <br/><br/>
Encyclopaedia of environmental sciences, Vol.25  Water pollution 

 - New Delhi  Akashdeep  1992 
 - [vi]304 p.  Illustration 
<br/><br/><label>ISBN: </label>8171582796 
<br/><br/><label>Dewey Class. No.: </label>551.03  / TRI