Columbia subject headings:
Harvard subject headings:
Belgians--Congo (Democratic Republic)--Biography.
Belgium--Colonies--Africa.
Congo (Democratic Republic)--History--1908-1960
Congo (Democratic Republic)--Social conditions--20th century.
Congolese (Democratic Republic)--Biography.
Princeton subject headings:
Belgians--Congo (Democratic Republic)--Biography.
Belgium--Colonies--Africa.
Congo (Democratic Republic)--History--1908-1960.
Congolese (Democratic Republic)--Biography.