Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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