APA (7th ed.) Citation

Menotti, G. C. (1947). The medium: Tragedy in two acts. G. Schirmer.

Chicago Style (17th ed.) Citation

Menotti, Gian Carlo. The Medium: Tragedy in Two Acts. New York: G. Schirmer, 1947.

MLA (9th ed.) Citation

Menotti, Gian Carlo. The Medium: Tragedy in Two Acts. G. Schirmer, 1947.