Columbia subject headings:
Germany--Politics and government--1789-1900--Congresses.
Germany--Politics and government--18th century--Congresses.
Great Britain--Politics and government--18th century--Congresses.
Great Britain--Politics and government--19th century--Congresses.
Harvard subject headings:
Germany--Politics and government--1789-1900--Congresses
Germany--Politics and government--18th century--Congresses.
Great Britain--Politics and government--18th century--Congresses.
Great Britain--Politics and government--19th century--Congresses.
Princeton subject headings:
Germany--Politics and government--18th century--Congresses.
Germany--Politics and government--19th century--Congresses.
Great Britain--Politics and government--18th century--Congresses.
Great Britain--Politics and government--19th century--Congresses.