Columbia subject headings:
Harvard subject headings:
Germany--Civilization--19th century.
Germany--Civilization--20th century.
Political culture--Germany--History--19th century.
Political culture--Germany--History--20th century.
Princeton subject headings:
Essays.
Germany--History--1871-1918.
Germany--History--20th century.
Political culture--Germany--19th century.
Political culture--Germany--20th century.