Bärmann, C., & Bettoney, H. (1938). The Bettoney Baermann clarinet method. Cundy-Bettoney.
Chicago Style (17th ed.) CitationBärmann, Carl, and Harry Bettoney. The Bettoney Baermann Clarinet Method. [Erscheinungsort nicht ermittelbar]: Cundy-Bettoney, 1938.
MLA (9th ed.) CitationBärmann, Carl, and Harry Bettoney. The Bettoney Baermann Clarinet Method. Cundy-Bettoney, 1938.
Warning: These citations may not always be 100% accurate.