Columbia subject headings:
Africa--Politics and government--1960---Congresses.
Africa--Social conditions--1960---Congresses.
Elite (Social sciences)--Africa--Congresses.
Social classes--Africa--Congresses.
Harvard subject headings:
Capitalism--Africa--Congresses.
Economic development--Congresses
Elite (Social sciences)--Africa--Congresses.
Social classes--Africa--Congresses.
Princeton subject headings: