APA (7th ed.) Citation

Morgan, R. P. (1991). Twentieth-century music: A history of musical style in modern Europe and America. Norton.

Chicago Style (17th ed.) Citation

Morgan, Robert P. Twentieth-century Music: A History of Musical Style in Modern Europe and America. New York: Norton, 1991.

MLA (9th ed.) Citation

Morgan, Robert P. Twentieth-century Music: A History of Musical Style in Modern Europe and America. Norton, 1991.