S.P. Sen <br/><br/>
Biofertilizers : Potetialities and problems 

 - Calcutta  Naya Prakash  1988 
 - 263p 
<br/><br/>S.P. Sen & P. Palit: Biofertilizers : Potetialities and problems.  Calcutta.  Naya Prakash, 1988. 81-85109-86-9--(631.847SEN)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-85109-86-9 
<br/><br/><label>Dewey Class. No.: </label>631.847  / SEN