An economic history of tropical Africa / 
selected and edited by Z. A. Konczacki and J. M. Konczacki. 
 - London :  Frank Cases,  1977- 
 - v. :  maps ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Open Access. 
<br/><br/><label>ISBN: </label>0714629197 
<br/><br/><label>LCCN: </label>7292967  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Africa, Sub-Saharan--Economic conditions--Addresses, essays, lectures.