Columbia subject headings:
Economics in literature.
German literature--19th century--History and criticism.
German literature--20th century--History and criticism.
Protest movements--History.
Harvard subject headings:
Economics in literature.
German literature--19th century--History and criticism
German literature--20th century--History and criticism
Labor in literature.
Protest movements--History.
Radicalism in literature.
Work in literature.
Princeton subject headings:
Economics in literature.
German literature--19th century--History and criticism.
German literature--20th century--History and criticism.
Protest movements--History.