Columbia subject headings:
Harvard subject headings:
Africa, Sub-Saharan--Economic conditions.
Africa, Sub-Saharan--Politics and government.
Africa, Sub-Saharan--Social conditions.
Africa, Sub-Saharan--Social life and customs.
Princeton subject headings:
Africa, Sub-Saharan--Economic conditions.
Africa, Sub-Saharan--Politics and government.
Africa, Sub-Saharan--Social conditions.
Africa, Sub-Saharan--Social life and customs.