Columbia subject headings:
Germany--History--1918-1933.
Germany--History--Revolution, 1918.
Germany--History--William II, 1888-1918.
Germany--Politics and government--20th century.
Luxemburg, Rosa, 1871-1919.
Harvard subject headings:
Germany--History--1871-1918
Germany--History--1918-1933.
Germany--History--Revolution, 1918.
Germany--Politics and government--20th century
Luxemburg, Rosa, 1871-1919
Princeton subject headings: