Columbia subject headings:
European Union countries--Emigration and immigration--Social aspects.
Immigrants--Language--Social aspects--European Union countries.
Intercultural communication--European Union countries.
Harvard subject headings:
European Union countries--Emigration and immigration--Social aspects.
European Union countries--Ethnic relations.
Immigrants--European Union countries--Language--Social aspects.
Intercultural communication--European Union countries.
Princeton subject headings:
European Union countries--Emigration and immigration--Social aspects.
European Union countries--Ethnic relations.
Immigrants--European Union countries--Language--Social aspects.
Intercultural communication--European Union countries.