Columbia subject headings:
Africa, West--Commerce--Europe--History.
Africa, West--Foreign relations--Europe.
Africa, West--History.
Europe--Commerce--Africa, West--History.
Europe--Foreign relations--Africa, West.
Harvard subject headings:
Africa, West--Commerce--Europe--History.
Africa, West--Foreign relations--Europe.
Africa, West--History
Europe--Commerce--Africa, West--History.
Europe--Foreign relations--Africa, West.
Princeton subject headings: