Land and food :  the challenge of sustainable agriculture in the tropics. 

 - Wageningen:   CTA,  1989. 
<br/><br/><label>ISBN: </label>9290810327 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable agriculture
<br/><br/><label>LC Class. No.: </label>S494.5.S8  / LAN 1989