Jones, W. I.  <br/><br/>
Farming systems in Africa :  the great lakes highlands of Zaire, Rwanda, and Burundi / 
William I. Jones and Roberto Egli. 
 - Washington, D.C.:  World Bank,  1984. 
 - v, 107 p. :  ill ; Hsk. 
 - World Bank technical paper, .
<br/><br/> Summaries in French and Spanish. 
<br/><br/><label>ISBN: </label>0821303988 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural systems<br/>Agriculture<br/>Agricultural innovations<br/>Soil conservation
<br/><br/><label>LC Class. No.: </label>S472.C46.J66   / 1984