Columbia subject headings:
Architecture--Germany--Trier.
Church architecture--Germany--Trier.
Church buildings--Germany--Trier.
Trier (Germany)--Buildings, structures, etc.
Harvard subject headings:
Art, German--Germany--Trier Region.
Catholic Church. Diocese of Trier (Germany)
Christianity and art--Germany--Trier Region.
Church architecture--Germany--Trier Region.
Church buildings--Germany--Trier Region.
Ronig, Franz.
Trier (Germany)--Buildings, structures, etc.
Princeton subject headings:
Art, German--Germany--Trier Region.
Catholic Church. Diocese of Trier (Germany)