APA (7th ed.) Citation

Lewis, C. S., & Branagh, K. (2001). The magician's nephew. Harper Audio.

Chicago Style (17th ed.) Citation

Lewis, C. S., and Kenneth Branagh. The Magician's Nephew. [United States?]: Harper Audio, 2001.

MLA (8th ed.) Citation

Lewis, C. S., and Kenneth Branagh. The Magician's Nephew. Harper Audio, 2001.

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