Columbia subject headings:
Harvard subject headings:
Farm produce--Portugal--Minho--History--19th century.
Minho (Portugal)--Economic conditions--19th century.
Tithes--Portugal--Minho--History--19th century.
Princeton subject headings:
Farm produce--Portugal--Minho--History--19th century.
Minho (Portugal)--Economic conditions--19th century.
Tithes--Portugal--Minho--History--19th century.