Columbia subject headings:
German language--Dialects.
German language--Foreign countries.
German language--Variation.
Languages in contact.
Linguistic minorities.
Harvard subject headings:
German language--Dialects--Foreign countries.
German language--Dialects.
German language--Foreign countries.
German language--Variation.
Languages in contact.
Linguistic minorities.
Princeton subject headings:
German language--Dialects.
German language--Foreign countries.
German language--Variation.
Languages in contact.
Linguistic minorities.