Columbia subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
Franco-Prussian War, 1870-1871--Causes.
Harvard subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
Franco-Prussian War, 1870-1871--Causes
Princeton subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
Franco-Prussian War, 1870-1871--Causes.