APA (7th ed.) Citation
Lewis, C. S., & Lewis, W. H. (1966). Letters of C.S Lewis. ([1st American ed.].). Harcourt, Brace & World.
Chicago Style (17th ed.) Citation
Lewis, C. S., and W. H. Lewis. Letters of C.S Lewis. [1st American ed.]. New York: Harcourt, Brace & World, 1966.
MLA (9th ed.) Citation
Lewis, C. S., and W. H. Lewis. Letters of C.S Lewis. [1st American ed.]. Harcourt, Brace & World, 1966.
Warning: These citations may not always be 100% accurate.