APA (7th ed.) Citation

Lewis, C. S. (1963). The Screwtape Letters and Screwtape Proposes at Toast. Time Incorporated.

Chicago Style (17th ed.) Citation

Lewis, C. S. The Screwtape Letters and Screwtape Proposes at Toast. New York: Time Incorporated, 1963.

MLA (9th ed.) Citation

Lewis, C. S. The Screwtape Letters and Screwtape Proposes at Toast. Time Incorporated, 1963.