Columbia subject headings:
Europe--Politics and government--1871-1918.
Europe--Politics and government--20th century.
Germany--Politics and government--1871-1918.
Germany--Politics and government--20th century.
Harvard subject headings:
Europe--Politics and government--1871-1918.
Europe--Politics and government--20th century.
Germany--Politics and government--1871-1918.
Germany--Politics and government--20th century
Princeton subject headings:
Europe--Politics and government--1871-1918.
Europe--Politics and government--20th century.
Germany--Politics and government--1871-1918.
Germany--Politics and government--20th century.