Cita APA (7a ed.)

Spencer, P. (1983). The practice of harmony. Prentice-Hall.

Cita Chicago Style (17a ed.)

Spencer, Peter. The Practice of Harmony. Englewood Cliffs, NJ: Prentice-Hall, 1983.

Cita MLA (9a ed.)

Spencer, Peter. The Practice of Harmony. Prentice-Hall, 1983.