Enlargement of the exchange economy in tropical Africa. 

 - New York,  1954. 
 - United Nations. [Document] ; ST/ECA/23  E/2557 ; .
 - Document (United Nations) ;  E/2557 ; ST/ECA/23  E/2557 ; ST/ECA/23 .
<br/><br/> "United Nations publication. Sales no.: 1954. II. C. 4." 
<br/><br/><label>LCCN: </label>54014618 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa, Central -- Economic conditions.--Africa, Central -- Economic conditions.
<br/><br/><label>LC Class. No.: </label>JX1977.A2  HC501.U52  / E/2557, etc.