Carr, Stephen. <br/><br/>
Improving cash crops in Africa: Factors influencing productivity of cotton, coffee, and tea. 

 - Washington :  World Bank,  1993. 
<br/><br/> This study explores the information on the technology available to small scale farmers in Africa for the production of cotton, coffee and tea. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cash Crops.<br/>Cash crops -- Africa -- Plant production.--Cash crops -- Africa -- Plant production.--Cash crops -- Africa -- Plant production.