Columbia subject headings:
Harvard subject headings:
Folk music--Great Britain--Bibliography.
Folk music--Great Britain--History and criticism--Bibliography.
Folk music--Ireland--Bibliography.
Folk music--Ireland--History and criticism--Bibliography.
Princeton subject headings:
Folk music--Great Britain--Bibliography.
Folk music--Great Britain--History and criticism--Bibliography.
Folk music--Ireland--Bibliography.
Folk music--Ireland--History and criticism--Bibliography.