APA (7th ed.) Citation

Wittlich, G. E., & Martin, D. S. (1988). Tonal harmony for the keyboard: With an introd. to improvisation. Schirmer Books u.a.

Chicago Style (17th ed.) Citation

Wittlich, Gary E., and Deborah S. Martin. Tonal Harmony for the Keyboard: With an Introd. to Improvisation. New York: Schirmer Books u.a, 1988.

MLA (9th ed.) Citation

Wittlich, Gary E., and Deborah S. Martin. Tonal Harmony for the Keyboard: With an Introd. to Improvisation. Schirmer Books u.a, 1988.