Columbia subject headings:
European Union countries--Languages--Law and legislation--Congresses.
French language--European Union countries--Congresses.
Language policy--European Union countries--Congresses.
Multilingualism--European Union countries--Congresses.
Harvard subject headings:
European Union countries--Languages--Law and legislation--Congresses.
French language--European Union countries--Congresses.
Language policy--European Union countries--Congresses.
Princeton subject headings: