Columbia subject headings:
Belarusian language--Dialects--Western Bug River Region.
Folklore--Western Bug River Region.
Language and culture--Western Bug River Region.
Languages in contact--Western Bug River Region.
Polish language--Dialects--Western Bug River Region.
Ukrainian language--Dialects--Western Bug River Region.
Harvard subject headings:
Belarusian language--Dialects--Poland.
Folklore--Poland
Languages in contact--Poland.
Polish language--Dialects--Poland.
Ukrainian language--Dialects--Poland.
Princeton subject headings:
Belarusian language--Dialects--Poland.
Folklore--Poland.
Languages in contact--Poland.
Polish language--Dialects--Poland.
Ukrainian language--Dialects--Poland.