Columbia subject headings:
Agnelli family--History.
Ferriera (Italy)--History.
Ferriera (Italy)--Social life and customs.
Susa Valley (Italy)--History.
Vandal family--History.
Harvard subject headings:
Agnelli family--History.
Ferriera (Italy)--History.
Ferriera (Italy)--Social life and customs.
Susa Valley (Italy)--History.
Vandal family--History.
Princeton subject headings:
Ferriera (Italy)--History.