Columbia subject headings:
Architecture, Romanesque--Constance, Lake, Region.
Architecture, Romanesque--Switzerland.
Church architecture--Constance, Lake, Region.
Church architecture--Switzerland.
Constance, Lake, Region.
Harvard subject headings:
Architecture, Romanesque--Lake of Constance region, Switz.
Church architecture--Lake of Constance region, Switz.
Princeton subject headings: