Upton,Martin <br/><br/>
The economics of tropical farming systems  

 - New York  Cambridge University Press  1996 
 - 374p. 
 - Wye studies in agricultural and rural development .
<br/><br/><label>ISBN: </label>0521482895 
<br/><br/><label>Subjects--Index Terms: </label>agriculture - economic aspects - Africa  rural development  tropical forming systems 
<br/><br/><label>Dewey Class. No.: </label>33:63  / UPT