Columbia subject headings:
Africa--Foreign relations--Sources.
Africa--History--1884-1960--Sources.
Great Britain--Colonies--Africa--History--Sources.
United States. Department of State--Archives.
Harvard subject headings:
Africa, Sub-Saharan--History--1884-1960--Sources.
Great Britain--Colonies--Africa--History--Sources.
United States. Department of State--Archives.
Princeton subject headings: