APA (7th ed.) Citation

Braga, G., Bosc, A., & Schleger, H. Der Engel Lied. Telefunken.

Chicago Style (17th ed.) Citation

Braga, Gaetano, Auguste Bosc, and Hans Schleger. Der Engel Lied. [S.l.]: Telefunken.

MLA (9th ed.) Citation

Braga, Gaetano, et al. Der Engel Lied. Telefunken.

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