Batra Madan Mohan <br/><br/>
Agricultural production    Prices and technology. 

 -  1978 
<br/><br/><label>Standard No.: </label>79155 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X9(J) :2, L8