Columbia subject headings:
German literature--20th century--History and criticism.
Germany--Intellectual life--20th century.
Internationalism in literature.
Labor movement in literature.
Socialism and literature--Germany--History--20th century.
Working class in literature.
Harvard subject headings:
Germany--History--1918-1933
Germany--Intellectual life--20th century
Working class in literature
Princeton subject headings:
German literature--20th century--History and criticism.
Germany--Intellectual life--20th century.
Internationalism in literature.
Labor movement in literature.
Socialism and literature--Germany--History--20th century.
Working class in literature.