Columbia subject headings:
Polish language--Dialects--Belarus--History.
Polish language--Dialects--Lithuania--History.
Harvard subject headings:
Polish language--Dialects--Belarus--Dictionaries.
Polish language--Dialects--Belarus--History.
Polish language--Dialects--Lithuania--Dictionaries.
Polish language--Dialects--Lithuania--History.
Princeton subject headings:
Polish language--Dialects--Belarus--Dictionaries.
Polish language--Dialects--Belarus--History.
Polish language--Dialects--Lithuania--Dictionaries.
Polish language--Dialects--Lithuania--History.