Cita APA (7th ed.)

Spencer, P. (1996). The practice of harmony (3rd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Spencer, Peter. The Practice of Harmony. 3rd ed. Englewood Cliffs, N.J: Prentice Hall, 1996.

Cita MLA (9th ed.)

Spencer, Peter. The Practice of Harmony. 3rd ed. Prentice Hall, 1996.