APA (7th ed.) Citation

Apel, W. (1947). Masters of the Keyboard: A brief survey of pianoforte music. By Willi Apel. Harvard University Press.

Chicago Style (17th ed.) Citation

Apel, Willi. Masters of the Keyboard: A Brief Survey of Pianoforte Music. By Willi Apel. Cambridge, Massachusetts: Harvard University Press, 1947.

MLA (9th ed.) Citation

Apel, Willi. Masters of the Keyboard: A Brief Survey of Pianoforte Music. By Willi Apel. Harvard University Press, 1947.