River pollution / 
L. B. Singh ... [et al.]. 
 - New Delhi :   A. P. H. Publishing,  2007. 
 - vi, 183 pages ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>8131300854 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water --India --Pollution 
<br/><br/><label>Dewey Class. No.: </label>628.168 RIV