Columbia subject headings:
Harvard subject headings:
Democracy--Germany--History--20th century--Exhibitions.
Germany--History--1918-1933--Exhibitions.
Germany--Politics and government--1918-1933--Exhibitions.
Germany--Social conditions--1918-1933--Exhibitions.
Rhineland (Germany)--History--20th century--Exhibitions.
Social change--Germany--History--20th century--Exhibitions.
Westphalia (Germany)--History--20th century--Exhibitions.
Princeton subject headings:
Democracy--Germany--History--20th century--Exhibitions.
Germany--History--1918-1933--Exhibitions.
Germany--Politics and government--1918-1933--Exhibitions.
Germany--Social conditions--1918-1933--Exhibitions.
Rhineland (Germany)--History--20th century--Exhibitions.
Social change--Germany--History--20th century--Exhibitions.
Westphalia (Germany)--History--20th century--Exhibitions.