APA (7th ed.) Citation

Lewis, C. S. (1966). Of other worlds: Essays and stories. G. Bles.

Chicago Style (17th ed.) Citation

Lewis, C. S. Of Other Worlds: Essays and Stories. London: G. Bles, 1966.

MLA (9th ed.) Citation

Lewis, C. S. Of Other Worlds: Essays and Stories. G. Bles, 1966.