Khanna, Dev Raj <br/><br/>
Ecology and pollution of Ganga River: A Limnological study at Hardwar 

 - 
 - Ashish Publishing House, New Delhi  1993 
 - 
 - .
<br/><br/>  
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic ecology-- Fresh water ecology-- Pond ecology-- Limnology
<br/><br/><label>Dewey Class. No.: </label>577.6  KHA-E