Columbia subject headings:
Harvard subject headings:
Companhia Geral de Pernambuco e Paraíba--History.
Companhia Geral do Grão Pará e Maranhão--History.
Portugal--Colonies--Commerce.
Portuguese--Africa, East.
Slave trade--Africa--History
Slave trade--Brazil, Northeast--History.
Princeton subject headings:
Companhia Geral de Pernambuco e Paraíba.
Companhia Geral do Grão Pará e Maranhão.
Slave trade--Africa, West.
Slave trade--Brazil, Northeast.