(1959). A bundle of ballads.: Compiled by Ruth Nanning-sanders. O.U.Pr..
Chicago Style (17th ed.) ZitazioaA Bundle of Ballads.: Compiled by Ruth Nanning-sanders. London: O.U.Pr., 1959.
MLA (9th ed.) ZitazioaA Bundle of Ballads.: Compiled by Ruth Nanning-sanders. O.U.Pr., 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.