Bera, Ajit Kumar <br/><br/>
Environmental Concept 
/ by Ajit Kumar Bera 
 - London :  New Central Book Agency,  2013 
 - XIII, 179 p. 
<br/><br/><label>ISBN: </label>978-81-7381-406-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Environmental Concept
<br/><br/><label>Dewey Class. No.: </label>577  / BER-E