Columbia subject headings:
Harvard subject headings:
Bilingualism--Europe.
Bilingualism--Social aspects--Europe.
Education, Bilingual--Europe.
Multilingual education--Europe.
Multilingualism--Europe.
Multilingualism--Social aspects--Europe.
Princeton subject headings:
Bilingualism--Europe.
Bilingualism--Social aspects--Europe.
Education, Bilingual--Europe.
Multilingual education--Europe.
Multilingualism--Europe.
Multilingualism--Social aspects--Europe.