Lewis, C. S. (1990). Screwtape proposes a toast: And other pieces. Collins.
Cita Chicago Style (17a ed.)Lewis, C. S. Screwtape Proposes a Toast: And Other Pieces. Glasgow: Collins, 1990.
Cita MLA (9a ed.)Lewis, C. S. Screwtape Proposes a Toast: And Other Pieces. Collins, 1990.
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