Columbia subject headings:
Harvard subject headings:
Germany--History--Revolution, 1918.
Germany--Politics and government--1871-1918.
Germany--Politics and government--1888-1918
Socialism--Germany--20th century.
Socialism--Germany--History--20th century
Sozialdemokratische Partei Deutschlands--History.
World War, 1914-1918--Germany.
Princeton subject headings:
Germany--History--Revolution, 1918.
Germany--Politics and government--1888-1918.
Socialism--Germany--History--20th century.
Sozialdemokratische Partei Deutschlands--History.
World War, 1914-1918--Germany.