APA (7th ed.) Citation

Bärmann, C., & Bettoney, H. (1939). The Bettoney Baermann clarinet method. Cundy-Bettoney.

Chicago Style (17th ed.) Citation

Bärmann, Carl, and Harry Bettoney. The Bettoney Baermann Clarinet Method. [Erscheinungsort nicht ermittelbar]: Cundy-Bettoney, 1939.

MLA (9th ed.) Citation

Bärmann, Carl, and Harry Bettoney. The Bettoney Baermann Clarinet Method. Cundy-Bettoney, 1939.