Columbia subject headings:
European Union--Europe, Central.
European Union--Europe, Eastern.
International and municipal law--Europe, Central.
International and municipal law--Europe, Eastern.
International and municipal law--European Union countries.
Harvard subject headings:
European Union--Europe, Central.
European Union--Europe, Eastern.
International and municipal law--Europe, Central.
International and municipal law--Europe, Eastern.
International and municipal law--European Union countries.
Princeton subject headings: