Columbia subject headings:
German fiction--20th century--History and criticism.
Proletariat in literature.
Socialism and literature.
Socialism in literature.
Harvard subject headings:
German fiction--20th century--History and criticism.
German fiction--Germany (East)--History and criticism.
Literature and society--Germany.
Social problems in literature.
Working class in literature.
Working class writings, German--History and criticism.
Princeton subject headings:
German fiction--20th century--History and criticism.
Proletariat in literature.
Socialism and literature.
Socialism in literature.