Columbia subject headings:
Harvard subject headings:
Germany--History--Revolution, 1918--Congresses.
Germany--Politics and government--1918-1933--Congresses.
Revolutions--Germany--Saxony-Anhalt--History--20th century--Congresses.
Saxony-Anhalt (Germany)--Politics and government--20th century--Congresses.
World War, 1914-1918--Influence--Congresses.
Princeton subject headings:
Germany--History--1918-1933.
Revolutions--Germany--Saxony-Anhalt.
Saxony-Anhalt (Germany)--History.