Cita APA (7th ed.)

Harder, P. O., & Steinke, G. A. (1995). Basic materials in music theory: A programmed course (8th ed.). Allyn and Bacon.

Cita Chicago (17th ed.)

Harder, Paul O., i Greg A. Steinke. Basic Materials in Music Theory: A Programmed Course. 8th ed. Boston: Allyn and Bacon, 1995.

Cita MLA (9th ed.)

Harder, Paul O., i Greg A. Steinke. Basic Materials in Music Theory: A Programmed Course. 8th ed. Allyn and Bacon, 1995.