APA (7th ed.) Citation

Lehár, F., Léon, V., Stein, L., & Harnick, S. (1977). The merry widow. Chappell.

Chicago Style (17th ed.) Citation

Lehár, Franz, Victor Léon, Leo Stein, and Sheldon Harnick. The Merry Widow. [Place of publication not identified]: Chappell, 1977.

MLA (9th ed.) Citation

Lehár, Franz, et al. The Merry Widow. Chappell, 1977.