APA (7th ed.) Citation

Balfe, M. W., Bunn, A., Sullivan, A., Pittman, J., & Saint-Georges, H. The Bohemian girl: Opera in three acts. Boosey.

Chicago Style (17th ed.) Citation

Balfe, M. W., Alfred Bunn, Arthur Sullivan, J. Pittman, and Henri Saint-Georges. The Bohemian Girl: Opera in Three Acts. London ; New York: Boosey.

MLA (8th ed.) Citation

Balfe, M. W., et al. The Bohemian Girl: Opera in Three Acts. Boosey.