Columbia subject headings:
Harvard subject headings:
France--Colonies--Africa--History--19th century.
France--Colonies--Africa.
Gambia--History.
Great Britain--Colonies--Africa--History--19th century.
Great Britain--Colonies--Africa.
Senegal--History.
Princeton subject headings:
France--Colonies--Africa.
Gambia--History.
Great Britain--Colonies--Africa.
Senegal--History--To 1960.