Gautam, Ashutosh. <br/><br/>
Ecology and pollution of mountain waters ( a case study of Bhagirathi river )   
by Ashutosh Gautam. 
 - New Delhi  Ashish  1990 
 - viii, 209p 
<br/><br/><label>ISBN: </label>8170243416 
<br/><br/><label>Dewey Class. No.: </label>574.5263  / N90