Columbia subject headings:
Africa--Colonization--History--19th century.
Africa--Colonization--History--20th century.
Africa--History--1884-1918.
Africa--History--To 1884.
Europe--Colonies--Africa--History--19th century.
Europe--Colonies--Africa--History--20th century.
Harvard subject headings:
Africa--Colonization--History--19th century.
Africa--Colonization--History--20th century.
Africa--History--1884-1918.
Africa--History--To 1884.
Europe--Colonies--Africa--History--19th century.
Europe--Colonies--Africa--History--20th century.
Princeton subject headings:
Africa--Colonization--History--19th century.
Africa--Colonization--History--20th century.
Africa--History--1884-1918.
Africa--History--To 1884.
Europe--Colonies--Africa--History--19th century.
Europe--Colonies--Africa--History--20th century.