Columbia subject headings:
Cameroon--History.
Douala (Cameroon)--History.
Douala Manga Bell, Rudolf, 1873-1914.
Duala (African people)--History.
Duala (African people)--Kings and rulers--Biography.
Harvard subject headings:
Cameroon--History.
Douala (Cameroon)--History.
Douala Manga Bell, Rudolf, 1873-1914.
Duala (African people)--History.
Duala (African people)--Kings and rulers--Biography.
Princeton subject headings: