APA (7th ed.) Zitazioa

Barton, R., & Dal Vera, R. (2017). Voice: Onstage and off (Third edition.). Routledge.

Chicago Style (17th ed.) Zitazioa

Barton, Robert, eta Rocco Dal Vera. Voice: Onstage and off. Third edition. New York, NY: Routledge, 2017.

MLA (9th ed.) Zitazioa

Barton, Robert, eta Rocco Dal Vera. Voice: Onstage and off. Third edition. Routledge, 2017.