Columbia subject headings:
Architecture, Romanesque--Italy--Pisa.
Duomo (Pisa, Italy)
Harvard subject headings:
Architecture, Romanesque--Italy--Pisa.
Duomo (Pisa, Italy)
Princeton subject headings:
Architecture, Romanesque--Italy--Pisa.
Christian art and symbolism--Medieval, 500-1500.
Duomo (Pisa, Italy)