Columbia subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Economic conditions.
Africa, Sub-Saharan--Politics and government.
Industries--Africa, Sub-Saharan.
Pan-Africanism.
Power resources--Africa, Sub-Saharan.
Harvard subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Economic conditions.
Africa, Sub-Saharan--Politics and government.
Industries--Africa, Sub-Saharan.
Pan-Africanism.
Power resources--Africa, Sub-Saharan.
Princeton subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Economic conditions.
Africa, Sub-Saharan--Politics and government.
Industries--Africa, Sub-Saharan.
Pan-Africanism.
Power resources--Africa, Sub-Saharan.