APA (7th ed.) Citation

Wiora, W., & Norton, M. H. (1965). The four ages of music. W.W. Norton & Company, Inc.

Chicago Style (17th ed.) Citation

Wiora, Walter, and M.D. Herter Norton. The Four Ages of Music. New York: W.W. Norton & Company, Inc, 1965.

MLA (9th ed.) Citation

Wiora, Walter, and M.D. Herter Norton. The Four Ages of Music. W.W. Norton & Company, Inc, 1965.