Columbia subject headings:
Africa, West--History--1884-1960.
Africa, West--History--To 1884.
British--Africa, West--History.
British--Niger River Valley--History.
Niger River Valley--Colonization.
Niger River Valley--History.
Harvard subject headings:
Africa, West--History--1884-1960.
Africa, West--History--To 1884.
British--Africa, West--History.
British--Niger River Valley--History.
Niger River Valley--Colonization.
Niger River Valley--History.
Princeton subject headings:
Africa, West--Commerce--Great Britain.
Africa, West--Economic conditions.
Africa, West--History.
Great Britain--Commerce--Africa, West.
Nigeria--Economic conditions.
Nigeria--History--Coup d'état, 1983.