APA (7th ed.) Citation

Harder, P. O., & Steinke, G. A. (2010). Harmonic materials in tonal music: A programmed course : part 1 (10th ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Harder, Paul O., and Greg A. Steinke. Harmonic Materials in Tonal Music: A Programmed Course : Part 1. 10th ed. Upper Saddle River, N.J: Prentice Hall, 2010.

MLA (9th ed.) Citation

Harder, Paul O., and Greg A. Steinke. Harmonic Materials in Tonal Music: A Programmed Course : Part 1. 10th ed. Prentice Hall, 2010.