Sansom, R. (2023). Vocal traditions: Training in the performing arts. Routledge.
Chicago-viite (17. p.)Sansom, Rockford. Vocal Traditions: Training in the Performing Arts. New York: Routledge, 2023.
MLA-viite (9. p.)Sansom, Rockford. Vocal Traditions: Training in the Performing Arts. Routledge, 2023.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.