Columbia subject headings:
Architecture, Romanesque--Italy--Arezzo (Province)
Christian art and symbolism--Medieval, 500-1500.
Church architecture--Italy--Arezzo (Province)
Harvard subject headings:
Architecture, Romanesque--Italy--Tuscany.
Church architecture--Italy--Tuscany.
Tuscany (Italy)--Buildings, structures, etc.
Tuscany (Italy)--Church history.
Princeton subject headings:
Architecture, Romanesque--Italy--Arno River Valley.
Church architecture--Italy--Arno River Valley.