Columbia subject headings:
Ballads, English--History and criticism.
Ballads, Scots--History and criticism.
Folklore--England.
Folklore--Scotland.
Harvard subject headings:
Ballads, English--England--History and criticism
Ballads, English--History and criticism.
Ballads, Scots--History and criticism.
Ballads, Scots--Scotland--History and criticism
Folklore--England
Folklore--Scotland
Princeton subject headings:
Ballads, English--History and criticism.
Ballads, Scots--History and criticism.
Folklore--England.
Folklore--Scotland.