TRIVEDI, P. R <br/><br/>
Encyclopaedia of environmental Sciences - Vol . 4 

 - Newdelhi  Akashdeep pub House  1997 
 - Viii, 296p 
<br/><br/><label>ISBN: </label>8171582796 
<br/><br/><label>Dewey Class. No.: </label>363.73'03