Cita APA (7th ed.)
Lewis, C. S. (1964). Letters to Malcolm: Chiefly on prayer. Harcourt, Brace and World.
Cita Chicago (17th ed.)
Lewis, C. S. Letters to Malcolm: Chiefly on Prayer. New York: Harcourt, Brace and World, 1964.
Cita MLA (9th ed.)
Lewis, C. S. Letters to Malcolm: Chiefly on Prayer. Harcourt, Brace and World, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.