GUPTA, U. S. <br/><br/>
Crop Improvement 

 - New Delhi,  Oxford & IBH Publishing Co Pv  t          1992 
 - ix, 267p. vol.1 
<br/><br/><label>ISBN: </label>81-204-0596 
<br/><br/><label>Dewey Class. No.: </label>631.523