APA (7th ed.) Citation

Lewis, C. S., & Hooper, W. (2007). The collected letters of C.S. Lewis. edited by Walter Hooper. Harper San Francisco.

Chicago Style (17th ed.) Citation

Lewis, C. S., and Walter Hooper. The Collected Letters of C.S. Lewis. Edited by Walter Hooper. New York, N.Y.: Harper San Francisco, 2007.

MLA (9th ed.) Citation

Lewis, C. S., and Walter Hooper. The Collected Letters of C.S. Lewis. Edited by Walter Hooper. Harper San Francisco, 2007.

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