Columbia subject headings:
European Union countries--Economic integration.
European Union countries--Politics and government.
European Union.
Legitimacy of governments--European Union countries.
Harvard subject headings:
European Union
European Union countries--Economic integration.
European Union countries--Politics and government.
Legitimacy of governments--European Union countries.
Princeton subject headings:
European Union countries--Economic integration.
European Union countries--Politics and government.
European Union.
Legitimacy of governments--European Union countries.