APA (7th ed.) Citation

Bonet, N., Boulanger, N., & Lasser, P. (2010). The fundamental principles of harmony. DINSIC Publicacions Musicals.

Chicago Style (17th ed.) Citation

Bonet, Narcís, Nadia Boulanger, and Philip Lasser. The Fundamental Principles of Harmony. Barcelona: DINSIC Publicacions Musicals, 2010.

MLA (9th ed.) Citation

Bonet, Narcís, et al. The Fundamental Principles of Harmony. DINSIC Publicacions Musicals, 2010.