Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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