APA (7th ed.) Zitazioa

Jahn, A. F. (2013). The singer's guide to complete health. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Jahn, Anthony F. The Singer's Guide to Complete Health. New York: Oxford University Press, 2013.

MLA (9th ed.) Zitazioa

Jahn, Anthony F. The Singer's Guide to Complete Health. Oxford University Press, 2013.