APA (7th ed.) Citation

Gregory, O. (1920). Caius Gracchus: A tragedy. Boni and Liveright.

Chicago Style (17th ed.) Citation

Gregory, Odin. Caius Gracchus: A Tragedy. New York: Boni and Liveright, 1920.

MLA (9th ed.) Citation

Gregory, Odin. Caius Gracchus: A Tragedy. Boni and Liveright, 1920.

Warning: These citations may not always be 100% accurate.