Jones, William I <br/><br/>
Farming systems in Africa: the Grãat lakes highlands of Zaire, Rwanda, and Burundi/ William I. Jones and Roberto Egli 

 - Washington:  The World Bank,  1984 
 - 107 p.  :il. 
<br/><br/> Inv. 2018 
<br/><br/><label>ISBN: </label>0821303988 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Empresas agrícolas-Africa<br/>Solos-conservacao<br/>Sistemas de producao
<br/><br/><label>Universal Decimal Class. No.: </label>631.151  / JON fa