Columbia subject headings:
Harvard subject headings:
Central-local government relations--European Union countries--Congresses.
Elections--Europe, Western--Congresses.
Europe--Economic integration--Congresses.
Europe--Politics and government--Congresses.
European federation--Congresses
Eurorpean Union countries--Economic conditions--Congresses.
Representative government and representation--European Union countries--Congresses.
Princeton subject headings:
Europe--Economic integration.
Europe--Elections.