Lewis, C. (1977). The Screwtape Letters: With Screwtape Proposes a Toast. Macmillan.
Cita Chicago Style (17a ed.)Lewis, C.S. The Screwtape Letters: With Screwtape Proposes a Toast. New York: Macmillan, 1977.
Cita MLA (9a ed.)Lewis, C.S. The Screwtape Letters: With Screwtape Proposes a Toast. Macmillan, 1977.
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