APA (7th ed.) Citation

Verdi, G., Piave, F. M., Phillips-Matz, M. J., Souvestre, É., & Bourgeois, E. (1993). Stiffelio: Opera in three acts. Metropolitan Opera Guild.

Chicago Style (17th ed.) Citation

Verdi, Giuseppe, Francesco Maria Piave, Mary Jane Phillips-Matz, Émile Souvestre, and Eugène Bourgeois. Stiffelio: Opera in Three Acts. New York: Metropolitan Opera Guild, 1993.

MLA (9th ed.) Citation

Verdi, Giuseppe, et al. Stiffelio: Opera in Three Acts. Metropolitan Opera Guild, 1993.