Columbia subject headings:
Harvard subject headings:
Art, Italian--Italy--Tuscany--Exhibitions.
Art, Italian--Italy--Umbria--Exhibitions.
Art, Medieval--Italy--Tuscany--Exhibitions.
Art, Medieval--Italy--Umbria--Exhibitions.
Princeton subject headings:
Art, Italian--Italy--Tuscany--Exhibitions.
Art, Italian--Italy--Umbria--Exhibitions.
Art, Medieval--Italy--Tuscany--Exhibitions.
Art, Medieval--Italy--Umbria--Exhibitions.