Columbia subject headings:
Harvard subject headings:
Bund Proletarisch-Revolutionärer Schriftsteller Deutschlands--History.
Communism and literature--Germany--History--20th century.
Communism and literature--Soviet Union--History--20th century.
German literature--20th century--History and criticism
Socialist realism in literature.
Princeton subject headings:
Communism and literature.
German literature--20th century--History and criticism.
German literature--Germany (East)--History and criticism.
Socialist realism in literature.