MLA

Friedemann, L. Michael. Ear Training for Twentieth-century Music. New Haven, CT: Yale University Press, 1990.

APA

Friedemann, L. Michael. (1990). Ear Training for Twentieth-Century Music. New Haven, CT: Yale University Press.

Chicago

Friedemann, L. Michael Ear Training for Twentieth-Century Music. New Haven, CT: Yale University Press, 1990.