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