Columbia subject headings:
Harvard subject headings:
German reunification question (1949-1990)--Congresses
Germany--Politics and government--1866-1871--Congresses.
Norddeutscher Bund (1866-1870)--History--Congresses.
Württemberg (Germany)--History--19th century--Congresses.
Princeton subject headings:
Germany--History--1866-1871--Congresses.
Germany--Politics and government--1866-1871--Congresses.
Württemberg (Germany)--History--19th century--Congresses.