Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--Intellectual life--20th century
Freie Volksbühne Berlin--History.
Theater and society--Germany--Berlin--History--20th century.
Theater--Germany--Berlin--History--20th century.
Princeton subject headings:
Berlin (Germany)--Intellectual life--20th century.
Freie Volksbühne Berlin--History.
Theater and society--Germany--Berlin--History--20th century.
Theater--Germany--Berlin--History--20th century.