APA (7th ed.) Zitazioa
Geisler, U., & Johansson, K. (2014). Choral singing: Histories and practices. Cambridge Scholars Publishing.
Chicago Style (17th ed.) Zitazioa
Geisler, Ursula, eta Karin Johansson. Choral Singing: Histories and Practices. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2014.
MLA (9th ed.) Zitazioa
Geisler, Ursula, eta Karin Johansson. Choral Singing: Histories and Practices. Cambridge Scholars Publishing, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.