Columbia subject headings:
Harvard subject headings:
Port wine industry--Portugal--Carrazeda de Ansiães--History.
Port wine--Portugal--Carrazeda de Ansiães--History.
Viticulture--Portugal--Carrazeda de Ansiães--History.
Princeton subject headings:
Port wine industry--Portugal--Carrazeda de Ansiães--History.
Port wine--Portugal--Carrazeda de Ansiães--History.
Viticulture--Portugal--Carrazeda de Ansiães--History.