APA (7th ed.) Zitazioa

Radionoff, S. L. (2008). The vocal instrument. Plural Pub..

Chicago Style (17th ed.) Zitazioa

Radionoff, Sharon L. The Vocal Instrument. San Diego, CA: Plural Pub., 2008.

MLA (9th ed.) Zitazioa

Radionoff, Sharon L. The Vocal Instrument. Plural Pub., 2008.