Columbia subject headings:
Harvard subject headings:
Country music
Country music--Discography
Country music--Discography.
Country music--Handbooks, manuals, etc.
Country music--History and criticism
Country music--History.
Country musicians--Biography
Country musicians--Biography.
Princeton subject headings:
Country music--Discography.
Country music--Handbooks, manuals, etc.
Country music--History and criticism.
Country musicians--Biography.