KUMAR,A <br/><br/>
ECOLOGY OF POLLUTED WATERS 2 VOLS 

 - NEW DELHI  APH Publishing Corporation  2002 
 - vii+1233p.,23X17Cms. 
<br/><br/><label>ISBN: </label>8176483168 
<br/><br/><label>Dewey Class. No.: </label>628.16 K95