Columbia subject headings:
Harvard subject headings:
European Union
Language policy--European Union countries--Congresses.
Language policy--Social aspects--Austria--Congresses.
Language policy--Social aspects--Switzerland--Congresses.
Multilingualism--European Union countries--Congresses.
Multilingualism--Political aspects--European Union countries--Congresses.
Multilingualism--Social aspects--European Union countries--Congresses.
Princeton subject headings:
European Union.
Language policy--European Union countries--Congresses.
Language policy--Social aspects--Austria--Congresses.
Language policy--Social aspects--Switzerland--Congresses.
Multilingualism--European Union countries--Congresses.
Multilingualism--Political aspects--European Union countries--Congresses.
Multilingualism--Social aspects--European Union countries--Congresses.