APA (7th ed.) Citation

Wummer, J. (1957). Twelve daily exercises in all major and minor keys for the development of tone and technique. R. D. Row Music Co..

Chicago Style (17th ed.) Citation

Wummer, John. Twelve Daily Exercises in All Major and Minor Keys for the Development of Tone and Technique. New York: R. D. Row Music Co., 1957.

MLA (9th ed.) Citation

Wummer, John. Twelve Daily Exercises in All Major and Minor Keys for the Development of Tone and Technique. R. D. Row Music Co., 1957.