APA (7th ed.) Citation

Lewis, C. S. (1961). The Screwtape letters,&: Screwtape proposes a toast (Macmillan paperbacks ed.). Macmillan.

Chicago Style (17th ed.) Citation

Lewis, C. S. The Screwtape Letters,&: Screwtape Proposes a Toast. Macmillan paperbacks ed. New York, N.Y.: Macmillan, 1961.

MLA (8th ed.) Citation

Lewis, C. S. The Screwtape Letters,&: Screwtape Proposes a Toast. Macmillan paperbacks ed. Macmillan, 1961.