APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Wiora, Walter, and Herter Norton. The Four Ages of Music. New York: W. W. Norton, 1965.

MLA (9th ed.) Citation

Wiora, Walter, and Herter Norton. The Four Ages of Music. W. W. Norton, 1965.