Columbia subject headings:
Art and state--Germany--History--20th century.
Arts--Political aspects--Germany--History--20th century.
Socialism and the arts--Germany--History--20th century.
Harvard subject headings:
Art and state--Germany--History--20th century.
Arts--Political aspects--Germany--History--20th century.
Socialism and the arts--Germany--History--20th century.
Princeton subject headings:
German literature--20th century--Sources.
Socialism and literature.