Columbia subject headings:
Harvard subject headings:
Belgium--Colonies--Administration.
Belgium--History--Leopold II, 1865-1909.
Congo (Democratic Republic)--History
Léopold II, King of the Belgians, 1835-1909.
Princeton subject headings:
Africa--Politics and government--19th century.
Belgium--Colonies--Africa--Administration.
Belgium--History--Leopold II, 1865-1909.
Congo (Democratic Republic)--Politics and government.
Léopold II, King of the Belgians, 1835-1909.
Missions--Congo (Democratic Republic)