Columbia subject headings:
Harvard subject headings:
Cabo Verde--Emigration and immigration.
Cabo Verde--History.
Sao Tome and Principe--History.
Slavery--Cabo Verde--History.
Slavery--Sao Tome and Principe--History.
Princeton subject headings:
Cabo Verde--Emigration and immigration.
Cabo Verde--History.
Sao Tome and Principe--History.
Slavery--Cape Verde--History.
Slavery--Sao Tome and Principe--History.