MARTIN UPTON <br/><br/>
AGRICULTURAL PRODUCTION ECONOICS AND RESOURCE-USE 

 - X, 357P. 
<br/><br/> INCLUDES INDEX 
<br/><br/><label>ISBN: </label>0 19 859459 3 
<br/><br/><label>LC Class. No.: </label>HD28.17.U67 1976