APA (7th ed.) Citation

Christopher, J. R. (1987). C. S. Lewis. Twayne.

Chicago Style (17th ed.) Citation

Christopher, Joe R. C. S. Lewis. Boston: Twayne, 1987.

MLA (9th ed.) Citation

Christopher, Joe R. C. S. Lewis. Twayne, 1987.

Warning: These citations may not always be 100% accurate.