Columbia subject headings:
Landowners--Brazil--Rio de Janeiro (State)--History--19th century.
Merchants--Brazil--Rio de Janeiro (State)--History--19th century.
Rio de Janeiro (Brazil : State)--Commerce--History--19th century.
Rio de Janeiro (Brazil : State)--Economic conditions.
Slave labor--Brazil--Rio de Janeiro (State)--History--19th century.
Harvard subject headings:
Landowners--Brazil--Rio de Janeiro (State)--History--19th century.
Merchants--Brazil--Rio de Janeiro (State)--History--19th century.
Rio de Janeiro (Brazil : State)--Commerce--History.
Rio de Janeiro (Brazil : State)--Economic conditions.
Slave labor--Brazil--Rio de Janeiro (State)--History--19th century.
Princeton subject headings:
Rio de Janeiro (Brazil : State)--Commerce--History.
Rio de Janeiro (Brazil : State)--Economic conditions.