Columbia subject headings:
Angola--History--1648-1885.
Industrial relations--Angola--History--18th century.
Iron foundries--Angola--History--18th century.
Mbundu (African people)--History--18th century.
Portugal--Colonies--Africa--History--18th century.
Real Fábrica de Nova Oeiras--History.
Harvard subject headings:
Angola--History--1648-1885.
Industrial relations--Angola--History--18th century.
Iron foundries--Angola--History--18th century.
Mbundu (African people)--History--18th century.
Portugal--Colonies--Africa--History--18th century.
Real Fábrica de Nova Oeiras--History.
Princeton subject headings:
Iron industry and trade--Angola--History--18th century.