APA (7th ed.) Zitazioa
Lewis, C. S. (1964). Letters to Malcolm: Chiefly on prayer. Harcourt, Brace and World.
Chicago Style (17th ed.) Zitazioa
Lewis, C. S. Letters to Malcolm: Chiefly on Prayer. New York: Harcourt, Brace and World, 1964.
MLA (9th ed.) Zitazioa
Lewis, C. S. Letters to Malcolm: Chiefly on Prayer. Harcourt, Brace and World, 1964.
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