Columbia subject headings:
Harvard subject headings:
Germany--History--Caricatures and cartoons.
Germany--History--Historiography--19th century.
Germany--History--Historiography--20th century.
Germany--History--Revolution, 1848-1849.
Labor movement--Germany--History
Political cartoons--History.
Working class--Songs and music--History and criticism.
Princeton subject headings:
Germany--History--Caricatures and cartoons.
Germany--History--Historiography--19th century.
Germany--History--Historiography--20th century.
Germany--History--Music.
Germany--History--Revolution, 1848-1849.
Labor movement--Germany--Music.
Political ballads and songs--Germany.
Political cartoons.