Columbia subject headings:
Harvard subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
France--Foreign relations--Germany.
France--Politics and government--1870-1940.
Germany--Foreign relations--France.
Princeton subject headings:
Bismarck, Otto, Fürst von, 1815-1898.
France--Foreign relations--Germany.
Germany--Foreign relations--France.