Blades-Zeller, E. (2018). A spectrum of voices: Prominent American voice teachers discuss the teaching of singing (Second edition.). Rowman & Littlefield.
Chicago-Zitierstil (17. Ausg.)Blades-Zeller, Elizabeth. A Spectrum of Voices: Prominent American Voice Teachers Discuss the Teaching of Singing. Second edition. Lanham ; Boulder ; New York ; London: Rowman & Littlefield, 2018.
MLA-Zitierstil (9. Ausg.)Blades-Zeller, Elizabeth. A Spectrum of Voices: Prominent American Voice Teachers Discuss the Teaching of Singing. Second edition. Rowman & Littlefield, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.