Columbia subject headings:
Harvard subject headings:
Emigration and immigration
Immigrants--Language.
Multilingualism--Social aspects--Europe.
Multilingualism--Social aspects.
Sociolinguistics--Europe
Sociolinguistics.
Princeton subject headings:
Emigration and immigration--Social aspects.
Immigrants--Language.
Multilingualism--Social aspects--Europe.
Multilingualism--Social aspects.
Sociolinguistics--Europe.
Sociolinguistics.