Birla Institute of Scientific Research, . <br/><br/>
Technological changes in agriculture /  
NULL. 
 - /   . 
 - NULL :   Vision Book ,   1980. 
 - NULL :   figs.,maps,plate.,tables ;   NULL  1 CD .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> RS0.00 (Hb)