Columbia subject headings:
Africa--Colonial influence.
Africa--History--19th century.
Africa--History--20th century.
Africa--Relations--Europe.
Europe--Relations--Africa.
Harvard subject headings:
Africa--Colonial influence.
Africa--History--19th century.
Africa--History--20th century.
Africa--Relations--Europe.
Europe--Relations--Africa.
Princeton subject headings:
Africa--Colonial influence.
Africa--History--19th century.
Africa--History--20th century.
Africa--Relations--Europe.
Europe--Relations--Africa.