Jones, I. L. (1986). The keys to singing: Enhanced by yawn-sigh vocal pedagogy : a practical treatise on developing voices.
Chicago-Zitierstil (17. Ausg.)Jones, Ira Lee. The Keys to Singing: Enhanced by Yawn-sigh Vocal Pedagogy : A Practical Treatise on Developing Voices. 1986.
MLA-Zitierstil (8. Ausg.)Jones, Ira Lee. The Keys to Singing: Enhanced by Yawn-sigh Vocal Pedagogy : A Practical Treatise on Developing Voices. 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.