APA (7th ed.) Citation

Gounod, C., Chorley, H. F., Carré, M., & Mistral, F. (1870). Mirella: Opera in three acts. Boosey.

Chicago Style (17th ed.) Citation

Gounod, Charles, Henry Fothergill Chorley, Michel Carré, and Frédéric Mistral. Mirella: Opera in Three Acts. London ; New York: Boosey, 1870.

MLA (8th ed.) Citation

Gounod, Charles, et al. Mirella: Opera in Three Acts. Boosey, 1870.