Columbia subject headings:
Brittany (France)--Commerce--Early works to 1800.
France--Commerce--Early works to 1800.
France--Commercial policy--Early works to 1800.
Shipping--France--Early works to 1800.
Trading companies--France--Brittany--Early works to 1800.
Harvard subject headings:
Brittany (France)--Commerce--Early works to 1800.
France--Commerce--Early works to 1800.
France--Commercial policy--Early works to 1800.
Shipping--France--Early works to 1800.
Trading companies--France--Brittany--Early works to 1800.
Princeton subject headings: