Columbia subject headings:
Harvard subject headings:
Bormida River Valley (Italy)--History--20th century--Congresses.
Gallo, Carlo Leone, 1875-1960--Congresses.
Princeton subject headings:
Art, Italian--Italy--Bormida River Valley--Congresses.
Bormida River Valley (Italy)--History--20th century--Congresses.
Bormida River Valley (Italy)--Social life and customs--Congresses.
Cairo Montenotte (Italy)--History--20th century--Congresses.
Gallo, Carlo Leone, 1875-1960--Congresses.