Columbia subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
Germany--Politics and government--1888-1918.
Socialism--Germany--History.
Harvard subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
Germany--Politics and government--1888-1918
Socialism--Germany
Socialism--Germany--History
Princeton subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
Germany--Politics and government--1888-1918.
Socialism--Germany--History.