Weaver, Robert D. <br/><br/>
An integrated model of parennial and annual crop production for Sub-Saharan countries 
By Robert D. Weaver 
 - Washington, D.C.  IBRD  1989 
 - 60p. 
 - Policy, Planning and Research: International Commodity Markets, Working Papers, 175 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm Produce-Africa, Sub-Saharan
<br/><br/><label>Dewey Class. No.: </label>Z2x67 In8