Columbia subject headings:
Germany--History--1789-1900.
Germany--Politics and government--20th century.
History, Modern--20th century.
History--Miscellanea.
Harvard subject headings:
Germany--History--1789-1900.
Germany--Politics and government--20th century
History, Modern--20th century
History--Miscellanea
Princeton subject headings:
Germany--History--1789-1900.
Germany--Politics and government--20th century.
History, Modern--20th century.
History--Miscellanea.
Trivia and miscellanea.