APA aipamena

Lewis, C. S., & Lewis, W. H. (1966). Letters ([1st American ed.].). Harcourt, Brace & World.

Chicago Style aipamena

Lewis, Clive Staples, and Warren Hamilton Lewis. Letters. [1st American ed.]. New York: Harcourt, Brace & World, 1966.

MLA aipamena

Lewis, Clive Staples, and Warren Hamilton Lewis. Letters. [1st American ed.]. Harcourt, Brace & World, 1966.