Biofertilizers 

 - Jodhpur  Scientific publishers  c1990 
 - xviii , 361p. 
<br/><br/><label>ISBN: </label>8185046891 
<br/><br/><label>Subjects--Index Terms: </label>Biofertilizers 
<br/><br/><label>Dewey Class. No.: </label>631  / BIO