Columbia subject headings:
Agriculture--Economic aspects--Italy--Piedmont--History.
Industries--Italy--Piedmont--History.
Viticulture--Italy--Piedmont--History.
Wine industry--Italy--Piedmont--History.
Harvard subject headings:
Agriculture--Economic aspects--Italy--Piedmont--History.
Industries--Italy--Piedmont--History.
Viticulture--Italy--Piedmont--History.
Wine industry--Italy--Piedmont--History.
Princeton subject headings:
Agriculture--Economic aspects--Italy--Piemonte--History.
Industries--Italy--Piemonte--History.
Viticulture--Italy--Piemonte--History.
Wine industry--Italy--Piemonte--History.