Columbia subject headings:
Mosaics, Early Christian--Italy.
Mosaics, Italian.
Mosaics, Medieval--Italy.
Harvard subject headings:
Christian art and symbolism--Italy--Medieval, 500-1500
Church decoration and ornament--Italy.
Mosaics, Italian.
Mosaics, Medieval--Italy.
Mosaics--Italy
Princeton subject headings:
Mosaics, Early Christian--Italy.
Mosaics, Italian.
Mosaics, Medieval--Italy.