Columbia subject headings:
Carinthia (Austria)--History--Congresses.
Friesland (Netherlands)--History--Congresses.
Germany--History--To 1517--Congresses.
Germany--Social conditions--Congresses.
Hansa towns--History--Congresses.
Regionalism--Germany--History--Congresses.
Social classes--Germany--History--Congresses.
Harvard subject headings:
Germany--History--To 1517--Congresses.
Regionalism--Germany--Congresses.
Social groups--Congresses
Social psychology--Germany--Congresses.
Princeton subject headings:
Carinthia (Austria)--History--Congresses.
Friesland (Netherlands)--History--Congresses.
Germany--History--To 1517--Congresses.
Germany--Social conditions--Congresses.
Hansa towns--History--Congresses.
Regionalism--Germany--History--Congresses.
Social classes--Germany--History--Congresses.