APA (7th ed.) Citation

Schönberg, A., & Adams, R. D. W. 1. (1948). Theory of harmony: = Harmonielehre. Philosophical Library.

Chicago Style (17th ed.) Citation

Schönberg, Arnold, and Robert Dana Walden 19XX- Adams. Theory of Harmony: = Harmonielehre. New York: Philosophical Library, 1948.

MLA (9th ed.) Citation

Schönberg, Arnold, and Robert Dana Walden 19XX- Adams. Theory of Harmony: = Harmonielehre. Philosophical Library, 1948.