Columbia subject headings:
Harvard subject headings:
German prose literature--19th century--History and criticism.
Labor movement in literature.
Working class authors--19th century.
Working class writings, German--19th century--History and criticism.
Princeton subject headings:
German prose literature--19th century--History and criticism.
Labor movement--Germany--History--19th century.
Working class in literature.
Working class writings, German--History and criticism.