Columbia subject headings:
Harvard subject headings:
Authors, Russian--20th century--Biography
Brecht, Bertolt, 1898-1956
Dramatists, German--20th century--Biography.
Russian literature--20th century--History and criticism
Tolstoy, Aleksey Nikolayevich, graf, 1883-1945
Princeton subject headings:
Russian literature--20th century--History and criticism.
Socialist realism in literature.