SUREDRA, Singh & J. P. Mittal <br/><br/>
Energy in production agriculture 

 - New Delhi  Mittal Pub.  1992 
 - x, 166P. 
<br/><br/><label>ISBN: </label>81-7099-407-1 
<br/><br/><label>Dewey Class. No.: </label>621.042