Columbia subject headings:
Harvard subject headings:
German language--Dialects--Austria--Vararlberg--Bibliography.
German language--Dialects--Germany--Baden-Württemberg--Bibliography.
German language--Dialects--Liechtenstein--Bibliography.
Princeton subject headings:
German language--Dialects--Austria--Vorarlberg--Bibliography.
German language--Dialects--Germany--Baden-Württemberg--Bibliography.
German language--Dialects--Liechtenstein--Bibliography.