Columbia subject headings:
Africa--Economic conditions--1960-
Africa--Politics and government--1960-
Africa--Social conditions--1960-
Economic development--Africa.
Harvard subject headings:
Africa--Economic conditions--1960-
Africa--Politics and government--1960-
Africa--Social conditions--1960-
Economic development--Africa.
Princeton subject headings:
Africa--Economic conditions--1960-
Africa--Politics and government--1960-
Africa--Social conditions--1960-
Economic development--Africa.