Columbia subject headings:
Africa--Commerce.
Africa--Commercial policy.
Africa--Economic conditions.
Culture--Economic aspects--Africa.
International relations and culture.
Harvard subject headings:
Africa--Commercial policy.
Africa--Economic conditions.
Commerce--Social aspects--Africa.
Culture--Economic aspects--Africa.
Economic development--Social aspects--Africa.
International relations and culture.
Princeton subject headings:
Africa--Commercial policy.
Africa--Economic conditions.
Commerce--Social aspects--Africa.
Culture--Economic aspects--Africa.
Economic development--Social aspects--Africa.
International relations and culture.