Bera, Ajit Kumar <br/><br/>
Environrmental Concept 
Ajit Kumar Bera1st ed. 
 - Calcutta:  New Central Book Agency,  2001 
 - 189p.;  25cm. 
<br/><br/><label>ISBN: </label>8173814066  Rs. 95.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENVIRONMENT
<br/><br/><label>Dewey Class. No.: </label>363.7  / BER