Das, S M <br/><br/>
Handbook of limnology and water pollution with practical methodology 

 -  South Asian Publishing Pvt. Ltd., New Delhi  1989 
 - 174 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limnology; Marine biology
<br/><br/><label>Dewey Class. No.: </label>574.929  DAS-H