Biswas, Bharati Mitra  <br/><br/>
Objective Ecology. 

 - 1 st ed. 
 - kolkata:  ishan Prakashani,   2016. 
 - 79p. 
<br/><br/><label>ISBN: </label>9788192532042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>581.7  / /MIT  E0 V0 C1