Apel, W. (1972). The history of keyboard music to 1700. Indiana University Press.
芝加哥风格引文Apel, Willi. The History of Keyboard Music to 1700. Bloomington: Indiana University Press, 1972.
MLA引文Apel, Willi. The History of Keyboard Music to 1700. Indiana University Press, 1972.
警告：这些引文格式不一定是100％准确.