APA (7th ed.) Citation

Gounod, C., Poirson, P., Gallet, L., & Gumbert, F. (1877). Cinq-Mars: Oper in vier Akten ([Libretto].). Schott.

Chicago Style (17th ed.) Citation

Gounod, Charles, Paul Poirson, Louis Gallet, and Ferdinand Gumbert. Cinq-Mars: Oper in Vier Akten. [Libretto]. Mainz: Schott, 1877.

MLA (9th ed.) Citation

Gounod, Charles, et al. Cinq-Mars: Oper in Vier Akten. [Libretto]. Schott, 1877.