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