Columbia subject headings:
Harvard subject headings:
Africa--Economic conditions.
Africa--Foreign economic relations--Germany (West)
Africa--Foreign economic relations--Germany.
Germany (West)--Foreign economic relations--Africa.
Germany--Foreign economic relations--Africa.
Industries--Africa
Princeton subject headings:
Africa--Economic conditions.
Africa--Foreign economic relations--Germany (West).
Africa--Foreign economic relations--Germany.
Germany (West)--Foreign economic relations--Africa.
Germany--Foreign economic relations--Africa.
Industries--Africa.