Cook-Koenig, C. (1995). Vocal fatigue in choral singing: Causes and suggestions for prevention voiced by prominent choral directors.
Chicago-Zitierstil (17. Ausg.)Cook-Koenig, Carol. Vocal Fatigue in Choral Singing: Causes and Suggestions for Prevention Voiced by Prominent Choral Directors. 1995.
MLA-Zitierstil (9. Ausg.)Cook-Koenig, Carol. Vocal Fatigue in Choral Singing: Causes and Suggestions for Prevention Voiced by Prominent Choral Directors. 1995.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.