Columbia subject headings:
Nationalism--Europe--Congresses.
Harvard subject headings:
Europe--Politics and government--1789-1900--Congresses.
Europe--Politics and government--20th century--Congresses.
Nationalism--Europe, Eastern--History--Congresses.
Nationalism--Europe, Western--History--Congresses.
State, The--Congresses
Princeton subject headings:
Europe--Politics and government--1789-1900--Congresses.
Europe--Politics and government--20th century--Congresses.
Nationalism--Europe, Eastern--History--Congresses.
Nationalism--Europe, Western--History--Congresses.
State, The--Congresses.