Columbia subject headings:
Chiesa di S. Maria in Porto fuori (Ravenna, Italy)--History.
Ravenna (Italy)--Church history.
Harvard subject headings:
Chiesa di S. Maria in Porto fuori (Ravenna, Italy)--History.
Ravenna (Italy)--Church history.
Princeton subject headings:
Chiesa di S. Maria in Porto fuori (Ravenna, Italy)
Church architecture--Italy--Ravenna--Conservation and restoration.
Ravenna (Italy)--Buildings, structures, etc.