Columbia subject headings:
Harvard subject headings:
Democracy--Germany--History--20th century
Germany--History--Revolution, 1918.
Germany--Politics and government--1918-1933
World War, 1914-1918--Germany--History.
Princeton subject headings:
Democracy--Germany--History--20th century.
Germany--Economic conditions--1918-1945.
Germany--History--Revolution, 1918.
Germany--Politics and government--1918-1933.
Germany--Social conditions--1918-1933.
Socialism--Germany--History--20th century.