Columbia subject headings:
Citizenship--European Union countries.
Civil rights--European Union countries.
Democracy--European Union countries.
European Union countries--Emigration and immigration.
European Union.
Political participation--European Union countries.
Harvard subject headings:
Citizenship--European Union countries
Civil rights--European Union countries
Democracy--European Union countries
European Union
European Union countries--Emigration and immigration.
Political participation--European Union countries
Princeton subject headings:
Citizenship--European Union countries.
Civil rights--European Union countries.
Democracy--European Union countries.
European Union countries--Emigration and immigration.
European Union.
Political participation--European Union countries.