Upton, M. <br/><br/>
The Economics of tropical farming systems 
Martin Upton 
 - Cambridge  Cambridge University Press  1996 
 - vi, 374P.:ill.;  Pbk 
<br/><br/><label>ISBN: </label>052163511 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farming systems--Agricultural systems