Columbia subject headings:
Architecture, Romanesque--Italy--Ascoli Piceno--Guidebooks.
Christian art and symbolism--Italy--Ascoli Piceno--Medieval, 500-1500--Guidebooks.
Church architecture--Italy--Ascoli Piceno--Guidebooks.
Harvard subject headings:
Architecture, Romanesque--Italy--Ascoli Piceno--Guidebooks.
Ascoli Piceno (Italy)--Buildings, structures, etc.--Guidebooks.
Ascoli Piceno (Italy)--Guidebooks.
Church architecture--Italy--Ascoli Piceno--Guidebooks.
Church buildings--Italy--Ascoli Piceno--Guidebooks.
Church decoration and ornament--Italy--Ascoli Piceno--Guidebooks.
Princeton subject headings:
Architecture, Romanesque--Italy--Ascoli Piceno--Guidebooks.
Ascoli Piceno (Italy)--Buildings, structures, etc.--Guidebooks.
Ascoli Piceno (Italy)--Guidebooks.
Church buildings--Italy--Ascoli Piceno--Guidebooks.
Church decoration and ornament--Italy--Ascoli Piceno--Guidebooks.
Guidebooks.