APA (7th ed.) Citation

Meyerbeer, G., Scribe, E., Delavigne, G., & Oxenford, J. (1870). Roberto il diavolo: Opera in five acts. Boosey.

Chicago Style (17th ed.) Citation

Meyerbeer, Giacomo, Eugène Scribe, Germain Delavigne, and John Oxenford. Roberto Il Diavolo: Opera in Five Acts. London ; New York: Boosey, 1870.

MLA (8th ed.) Citation

Meyerbeer, Giacomo, et al. Roberto Il Diavolo: Opera in Five Acts. Boosey, 1870.