Bartle, J. A. (2003). Sound advice: Becoming a better children's choir conductor. Oxford University Press.
Chicago-Zitierstil (17. Ausg.)Bartle, Jean Ashworth. Sound Advice: Becoming a Better Children's Choir Conductor. Oxford: Oxford University Press, 2003.
MLA-Zitierstil (9. Ausg.)Bartle, Jean Ashworth. Sound Advice: Becoming a Better Children's Choir Conductor. Oxford University Press, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.