Upton, Martin <br/><br/>
Agricultural production economics and resource use   

 - London  Oxford University Press  1976 
 - x, 357p. 
<br/><br/>  
<br/><br/><label>ISBN: </label>0198594526 
<br/><br/><label>Dewey Class. No.: </label>338.10184  / UP71.AP