Columbia subject headings:
Africa--Economic conditions--1960-
Africa--Foreign economic relations--United States--Congresses.
Corporations, American--Africa--Congresses.
Investments, American--Africa--Congresses.
United States--Foreign economic relations--Africa--Congresses.
Harvard subject headings:
International business enterprises--Africa--Congresses.
Investments, American--Africa--Congresses.
Princeton subject headings: