Columbia subject headings:
Africa--Foreign relations--1960-
Mineral industries--Political aspects--Africa.
Strategic materials--Political aspects--Africa.
Harvard subject headings:
Africa--Foreign relations--1960-
Mineral industries--Political aspects--Africa.
Strategic materials--Political aspects--Africa.
Princeton subject headings:
Africa--Foreign relations--1960-
Mineral industries--Political aspects--Africa.
Strategic materials--Political aspects--Africa.