Columbia subject headings:
Indian Ocean Region--Ethnic relations.
Slave trade--Indian Ocean Region--History.
Slavery--Indian Ocean Region--History.
Slaves--Indian Ocean Region--Social conditions.
Harvard subject headings:
Africans--Indian Ocean Region--Migrations.
Indian Ocean Region--Civilization.
Indian Ocean Region--Economic conditions--History.
Indian Ocean Region--Politics and government.
Slave trade--Indian Ocean Region--History.
Princeton subject headings: