Columbia subject headings:
Harvard subject headings:
Africa, East--Colonization--History.
Africa, East--Description and travel.
Africa, East--History.
Explorers--Germany--Biography.
German East Africa--Colonies--History.
Germany--Colonies--Description and travel.
Princeton subject headings:
German East Africa--Description and travel.
Germans--Africa, East.
Germans--Travel--Africa, East.
Germany--Colonies--Africa--History--Sources.