Columbia subject headings:
Missions, German--Africa, West.
Missions--Ghana--History.
Missions--Theory.
Zahn, F. M. (Franz Michael), 1833-1900.
Harvard subject headings:
Africa, West--Religious life and customs.
Missions, European--Africa, West--History.
Zahn, E. M. (Franz Michael), 1833-1900.
Zahn, F. M. (Franz Michael), 1833-1900.
Princeton subject headings: