Columbia subject headings:
Art, Italian--20th century.
Premio Orvieto--History.
Harvard subject headings:
Princeton subject headings:
Art, Italian--Italy--Orvieto--20th century--Exhibitions.
Art, Italian--Italy--Umbria--20th century--Exhibitions.
Exhibitions--Italy--Orvieto--History--20th century.
Premio Orvieto (Exhibition)--History.