Selvarajah .N <br/><br/>
Ecology of tropical pond 
N. Selvarajah  
 - Jaffna  Department of  zoology, University of Jaffna 
 - 36 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>574.929  / SEL