Columbia subject headings:
Folk songs, French--France--Brittany--Congresses.
Folk songs--Europe--Congresses.
Oral tradition--Europe--Congresses.
Oral tradition--France--Brittany--Congresses.
Harvard subject headings:
Folk literature--Congresses.
Folk songs, French--France--Brittany--Congresses.
Folk songs--Europe--Congresses.
Oral tradition--Europe--Congresses.
Oral tradition--France--Bretagne (France)--Congresses.
Oral tradition--France--Brittany--Congresses.
Princeton subject headings:
Folk songs, French--France--Bretagne (France)--Congresses.
Folk songs--Europe--Congresses.
Oral tradition--Europe--Congresses.
Oral tradition--France--Bretagne (France)--Congresses.