Columbia subject headings:
Ethnology--Tanzania--Pemba Island.
Ethnology--Tanzania--Zanzibar.
Pemba Island (Tanzania)--History.
Zanzibar--History.
Harvard subject headings:
Ethnology--Tanzania--Pemba Island.
Ethnology--Tanzania--Zanzibar.
Pemba Island (Tanzania)--History.
Zanzibar--History.
Princeton subject headings: