APA (7th ed.) Citation

Wyatt, K., & Schroeder, C. Harmony r theory. Hal. Leonard.

Chicago Style (17th ed.) Citation

Wyatt, Keith, and Carl Schroeder. Harmony R Theory. Hal. Leonard.

MLA (8th ed.) Citation

Wyatt, Keith, and Carl Schroeder. Harmony R Theory. Hal. Leonard.

Warning: These citations may not always be 100% accurate.