Columbia subject headings:
Decentralization in government--European Union countries.
European Union.
Regionalism--European Union countries.
Harvard subject headings:
Decentralization in government--European Union countries.
Democracy--European Union countries
Environmental management--European Union countries.
Environmental policy--European Union countries
European Union
European Union countries--Politics and government.
Regionalism--European Union countries
Princeton subject headings:
Decentralization in government--European Union countries.
Regionalism--European Union countries.