Rao, N. S. Subba <br/><br/>
Biofertilizers in agriculture and forestry 

 - 3rd ed. 
 - America  Science Publishers  1993 
 - xi,242p.  23cm 
<br/><br/><label>ISBN: </label>1881570290 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen fertilizers<br/>Fertilizers, soil conditioners, growth regulators
<br/><br/><label>Dewey Class. No.: </label>631.849  / RAO