National institute of industrial research <br/><br/>
Complete technology book on : bio-fertilizer and organic farming 

 - Delhi  NIIR 
 - 620p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biofertilisers
<br/><br/><label>Dewey Class. No.: </label>620.8  / NIT.C