Reid, C. L. (2018). The free voice: A guide to natural singing (50th anniversary edition.). Oxford University Press.
芝加哥风格引文Reid, Cornelius L. The Free Voice: A Guide to Natural Singing. 50th anniversary edition. New York, NY: Oxford University Press, 2018.
MLA引文Reid, Cornelius L. The Free Voice: A Guide to Natural Singing. 50th anniversary edition. Oxford University Press, 2018.
警告：这些引文格式不一定是100％准确.