Santhanam, R.. <br/><br/>
A Manual of Freshwater Ecology /  Textual Documents 
R. Santhanam, P. Velayutham, G. Jegatheesan. 
 - 1st ed. / 
 - Delhi :  Daya Publishing ,  1989. 
 - 134p. ;  22cm. 
<br/><br/>Index 
<br/><br/><label>ISBN: </label>81-7035-054-9 
<br/><br/><label>Subjects--Index Terms: </label>Zoology-Freshwater ecology Freshwater ecology PG-Zoology 
<br/><br/><label>Dewey Class. No.: </label>591.5  / Sa 51 Ma