APA (7th ed.) Citation

Donizetti, G., Royer, A., & Vaëz, G. (1970). La favorita =: The favorite : an opera in four acts. Fred Rullmann.

Chicago Style (17th ed.) Citation

Donizetti, Gaetano, Alphonse Royer, and Gustave Vaëz. La Favorita =: The Favorite : An Opera in Four Acts. New York: Fred Rullmann, 1970.

MLA (8th ed.) Citation

Donizetti, Gaetano, et al. La Favorita =: The Favorite : An Opera in Four Acts. Fred Rullmann, 1970.