Reid, C. L. (2018). The free voice: A guide to natural singing (50th anniversary edition.). Oxford University Press.
Chicagoスタイル(17版)引用形式Reid, Cornelius L. The Free Voice: A Guide to Natural Singing. 50th anniversary edition. New York, NY: Oxford University Press, 2018.
MLA(9版)引用形式Reid, Cornelius L. The Free Voice: A Guide to Natural Singing. 50th anniversary edition. Oxford University Press, 2018.
警告: この引用は必ずしも正確ではありません.