TRIPATHI (A K) & PANDEY (S N). <br/><br/>
Water pollution. 

 - ND  Ashish publishing house  1990 
 - ix,326 
<br/><br/><label>ISBN: </label>81 7024 267 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water pollution
<br/><br/><label>Dewey Class. No.: </label>574.5263 TRIW