Columbia subject headings:
Ballads, English--History and criticism--Congresses.
Ballads, English--United States--History and criticism--Congresses.
Folklore in literature--Congresses.
Literature and society--Congresses.
Oral tradition--Congresses.
Harvard subject headings:
Ballads, English--Great Britain--History and criticism--Congresses.
Ballads, English--History and criticism--Congresses.
Ballads, English--United States--History and criticism--Congresses.
Folklore in literature--Congresses.
Literature and society--Congresses.
Oral tradition--Congresses.
Princeton subject headings: