APA (7th ed.) Citation

Kern, J., Jobin, A., & 1887-1968. Showboat: Book & lyrics by Oscar Hammerstein II. 1990.

Chicago Style (17th ed.) Citation

Kern, Jerome, André Jobin, and 1887-1968. Showboat: Book & Lyrics by Oscar Hammerstein II. 1990.

MLA (9th ed.) Citation

Kern, Jerome, et al. Showboat: Book & Lyrics by Oscar Hammerstein II. 1990.