Columbia subject headings:
Folk songs, English--United States--History and criticism.
Folk songs--Discography.
Folk songs--Great Britain--History and criticism.
Harvard subject headings:
Folk music--Great Britain--History and criticism.
Folk music--United States--History and criticism
Folk songs, English--Discography.
Princeton subject headings:
Folk music--Great Britain--History and criticism.
Folk music--United States--History and criticism.
Folk songs, English--Discography.