APA aipamena

Lewis, C. S. (1999). Screwtape proposes a toast and other pieces. Fontana Books.

Chicago Style aipamena

Lewis, C S. Screwtape Proposes a Toast and Other Pieces. London: Fontana Books, 1999.

MLA aipamena

Lewis, C S. Screwtape Proposes a Toast and Other Pieces. Fontana Books, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.