APA (7th ed.) Citation

Romberg, S., Hammerstein, O., Mandel, F., & Schwab, L. (1928). The new moon: A romantic musical play. Chappell.

Chicago Style (17th ed.) Citation

Romberg, Sigmund, Oscar Hammerstein, Frank Mandel, and Laurence Schwab. The New Moon: A Romantic Musical Play. London: Chappell, 1928.

MLA (9th ed.) Citation

Romberg, Sigmund, et al. The New Moon: A Romantic Musical Play. Chappell, 1928.