The human factor of productivity in Africa :  a preliminary survey. 

 - [Bamako] :  C.C.T.A.,  [1956] 
<br/><br/> Published for the Commission for Technical Co-operation in Africa South of the Sahara. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor and laboring classes -- Africa.--Labor and laboring classes -- Africa.