Columbia subject headings:
Harvard subject headings:
Bismarck, Otto, Fürst von, 1815-1898--Congresses.
Germany--Economic conditions--19th century--Congresses.
Germany--Economic policy--19th century--Congresses.
Germany--Economic policy--Congresses.
Germany--Foreign relations--1789-1900--Congresses.
Germany--Politics and government--1789-1900--Congresses
Princeton subject headings:
Bismarck, Otto, Fürst von, 1815-1898--Congresses.
Germany--Economic conditions--19th century--Congresses.
Germany--Economic policy--19th century--Congresses.