Columbia subject headings:
Harvard subject headings:
Berlin (Germany)
Berlin (Germany)--History--18th century.
Berlin (Germany)--Intellectual life--18th century.
Germany--History--1789-1900.
Intellectuals--Germany--History--18th century.
Intellectuals--Germany--History--19th century.
Princeton subject headings:
Berlin (Germany)
Germany--History--1789-1900.
Intellectuals--Germany--History--18th century.
Intellectuals--Germany--History--19th century.