V.L. Chopra <br/><br/>
Crop productivity and sustainability shaping the future 

 - New Delhi  Oxford & BH Publishing Co pvt Ltd  1998 
 - 1111p 
<br/><br/>V.L. Chopra; R.B. Singh & Anupam Varma: Crop productivity and sustainability shaping the future.  New Delhi.  Oxford & BH Publishing Co pvt Ltd, 1998. 81-204-1212-5--(630CHO)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-204-1212-5 
<br/><br/><label>Dewey Class. No.: </label>630  / CHO