Columbia subject headings:
Africa--Foreign economic relations--Japan.
Africa--Foreign economic relations--United States.
Japan--Foreign economic relations--Africa.
United States--Foreign economic relations--Africa.
Harvard subject headings:
Africa--Foreign economic relations--Japan.
Africa--Foreign economic relations--United States.
Japan--Foreign economic relations--Africa.
United States--Foreign economic relations--Africa.
Princeton subject headings:
Africa--Foreign economic relations--Japan.
Africa--Foreign economic relations--United States.
Japan--Foreign economic relations--Africa.
United States--Foreign economic relations--Africa.