(2002). A spectrum of voices: Prominent American voice teachers discuss the teaching of singing. Scarecrow Press.
Chicago-Zitierstil (17. Ausg.)A Spectrum of Voices: Prominent American Voice Teachers Discuss the Teaching of Singing. Lanham, Md. [u.a.]: Scarecrow Press, 2002.
MLA-Zitierstil (9. Ausg.)A Spectrum of Voices: Prominent American Voice Teachers Discuss the Teaching of Singing. Scarecrow Press, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.