Columbia subject headings:
Lübeck (Germany)--Antiquities--Congresses.
Lübeck (Germany)--Guidebooks--Congresses.
Lübeck (Germany)--History--Congresses.
Harvard subject headings:
Cultural property--Germany--Lübeck--Congresses.
Lübeck (Germany)--Guidebooks--Congresses.
Lübeck (Germany)--History--Congresses.
Princeton subject headings:
Cultural property--Germany--Lübeck--Congresses.
Guidebooks.
Lübeck (Germany)--Guidebooks--Congresses.
Lübeck (Germany)--History--Congresses.