Biofertilizers : potentialities and problems 
edited by S.P. Sen and P. Lalit 
 - Calcutta  Plant Phsiology Forum  1988 
 - 263p.;  24cm. 
<br/><br/><label>ISBN: </label>8185109869 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers<br/>Biofertilizers<br/>Fertilizers-Potentialities
<br/><br/><label>Dewey Class. No.: </label>631.82  / SEN