Columbia subject headings:
Harvard subject headings:
Portugal--Colonies--Africa--Administration.
Portugal. Curadoria Geral dos Serviçais e Colonos.
Sao Tome and Principe--History--19th century.
Sao Tome and Principe--History--20th century.
Slaves--Emancipation--Sao Tome and Principe.
Princeton subject headings:
Portugal--Colonies--Administration--Africa.
Portugal. Curadoria Geral dos Serviçais e Colonos.
Sao Tome and Principe--History--19th century.
Sao Tome and Principe--History--20th century.
Slaves--Emancipation--Sao Tome and Principe.