Columbia subject headings:
Africa, Sub-Saharan--Economic conditions--1960-
Africa, Sub-Saharan--Economic integration.
Africa, Sub-Saharan--Economic policy.
Africa, Sub-Saharan--Foreign economic relations.
Harvard subject headings:
Africa, Sub-Saharan--Politics and government--1960-
Africa, Sub-Saharan--Relations--Foreign countries.
Africa, Sub-Saharan--Relations.
Regionalism (International organization)
Regionalism--Africa, Sub-Saharan.
Princeton subject headings:
Africa, Sub-Saharan--Politics and government--1960-
Africa, Sub-Saharan--Relations--Foreign countries.
Regionalism--Africa, Sub-Saharan.