CHATTERJEE B. N. <br/><br/>
Cropping system 

 - NewDelhi  Oxford & IBH Publishing CO Pv  t Ltd      1989 
 - xiv, 345p. 
<br/><br/><label>ISBN: </label>81-204-0419-x 
<br/><br/><label>Dewey Class. No.: </label>631.558