Columbia subject headings:
Architecture--Germany--Trier-Saarburg.
Historic buildings--Germany--Trier-Saarburg.
Trier-Saarburg (Germany)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Germany--Trier-Saarburg--Guidebooks.
Architecture--Germany--Trier-Saarburg.
Church architecture--Germany--Trier-Saarburg.
Historic buildings--Germany--Trier-Saarburg--Guidebooks.
Trier-Saarburg (Germany)--Buildings, structures, etc.
Trier-Saarburg (Germany)--Description and travel.
Trier-Saarburg (Germany)--History.
Princeton subject headings:
Architecture--Germany--Trier-Saarburg.
Historic buildings--Germany--Trier-Saarburg.
Trier-Saarburg (Germany)--Buildings, structrues, etc.