APA (7th ed.) Citation

Henry, O. (1919). The four million (Authorized ed.). Doubleday, Page.

Chicago Style (17th ed.) Citation

Henry, O. The Four Million. Authorized ed. Garden City, NY: Doubleday, Page, 1919.

MLA (9th ed.) Citation

Henry, O. The Four Million. Authorized ed. Doubleday, Page, 1919.