Balakrishnan Nair, N <br/><br/>
Paristhitivijnanam (m) / 
Balakrishnan Nair, N 
 -  Kerala Bhasha Institute, Trivandrum,  1971 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Biodiversity; Conservation
<br/><br/><label>Dewey Class. No.: </label>577 BAL-P