H.C. Srivastava <br/><br/>
Crop Productivity 

 - New Delhi  Oxford & IBH Publishing Co.Pvt.Limited  1987 
 - 467p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-204-0257-X 
<br/><br/><label>Dewey Class. No.: </label>630.2  / SRI