Columbia subject headings:
Cameroon--Bibliography.
German East Africa--Bibliography.
Germans--Africa--Bibliography.
Namibia--Bibliography.
Harvard subject headings:
Cameroon--Bibliography.
German East Africa--Bibliography.
Germans--Africa--Bibliography.
Namibia--Bibliography.
Princeton subject headings:
Cameroon--Bibliography.
German East Africa--Bibliography.
Germans--Africa--Bibliography.
Namibia--Bibliography.