Columbia subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Economic conditions.
Pan-Africanism.
Harvard subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Economic conditions.
Pan-Africanism.
Princeton subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Economic conditions.
Pan-Africanism.