Columbia subject headings:
Art--Italy--Biella.
Art--Italy--Sesia River Valley.
Art--Italy--Vercelli.
Biella (Italy)
Vercelli (Italy)
Harvard subject headings:
Art--Italy--Biella.
Art--Italy--Vercelli.
Art--Sesia Valley.
Biella (Italy)
Vercelli (Italy)
Princeton subject headings:
Art--Italy--Biella.
Art--Italy--Vercelli.
Art--Sesia Valley.
Biella (Italy)
Vercelli (Italy)