APA aipamena

Harder, P. O. (1990). Harmonic materials in tonal music: A programmed course (6th ed.). Allyn and Bacon.

Chicago Style aipamena

Harder, Paul O. Harmonic Materials in Tonal Music: A Programmed Course. 6th ed. Boston: Allyn and Bacon, 1990.

MLA aipamena

Harder, Paul O. Harmonic Materials in Tonal Music: A Programmed Course. 6th ed. Allyn and Bacon, 1990.