Santhanam,R and others <br/><br/>
Manual of Freshwater Ecology / 
Santhanam,R and others 
 - Delhi  Daya publishing house  1989 
 - 134p. 
<br/><br/> Water analysis--soil analysis--biological analysis 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>577.6095