Columbia subject headings:
Art, Italian--Italy--Viterbo (Province)
Christian art and symbolism--Italy--Viterbo (Province)
Harvard subject headings:
Art, Italian--Italy--Viterbo (Province)
Art, Italian--Italy--Viterbo.
Christian art and symbolism--Italy--Viterbo (Province)
Christian art and symbolism--Italy--Viterbo.
Princeton subject headings:
Art, Italian--Italy--Viterbo (Province).
Art, Italian--Italy--Viterbo.
Christian art and symbolism--Italy--Viterbo (Province).
Christian art and symbolism--Italy--Viterbo.