APA (7th ed.) Citation

Harder, P. O., & Steinke, G. A. (2010). Basic materials in music theory: A programmed course (12th ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Harder, Paul O., and Greg A. Steinke. Basic Materials in Music Theory: A Programmed Course. 12th ed. Upper Saddle River, N.J: Prentice-Hall, 2010.

MLA (9th ed.) Citation

Harder, Paul O., and Greg A. Steinke. Basic Materials in Music Theory: A Programmed Course. 12th ed. Prentice-Hall, 2010.