upton martin <br/><br/>
the economics of tropical farming systems  / 
upton martin 
 - CALIFORNIA  Cambridge University Press  1995 
 - 374 p.  25 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>الاهرام 2002<br/>Africa<br/>Agricultural<br/>ECONOMIC
<br/><br/><label>Dewey Class. No.: </label>338.1/u e