APA (7th ed.) Citation

Friml, R., Stothart, H., & Steiner, E. (1949). The donkey serenade: From "The Firefly". G. Schirmer.

Chicago Style (17th ed.) Citation

Friml, Rudolf, Herbert Stothart, and Eric Steiner. The Donkey Serenade: From "The Firefly". New York: G. Schirmer, 1949.

MLA (9th ed.) Citation

Friml, Rudolf, et al. The Donkey Serenade: From "The Firefly". G. Schirmer, 1949.