Columbia subject headings:
Berlin (Germany)--Civilization--20th century.
Berlin (Germany)--In literature.
Berlin (Germany)--In motion pictures.
Harvard subject headings:
Berlin (Germany)--Civilization--20th century.
Berlin (Germany)--In literature.
Berlin (Germany)--In motion pictures
Princeton subject headings:
Berlin (Germany)--Civilization--20th century.
Berlin (Germany)--In literature.
Berlin (Germany)--In motion pictures.