Columbia subject headings:
Harvard subject headings:
Europe--Languages--Congresses.
Europe--Languages.
Language policies--Europe.
Language policy--Europe--Congresses.
Multilingual education--Europe--Congresses.
Multilingual education--Europe.
Multilingualism--Europe--Congresses.
Multilingualism--Europe.
Princeton subject headings:
Europe--Languages.
Language policies--Europe.
Multilingual education--Europe.
Multilingualism--Europe.