APA (7th ed.) Citation

Lewis, C. S. (2001). The problem of pain (HarperCollins ed.). HarperSanFrancisco.

Chicago Style (17th ed.) Citation

Lewis, C. S. The Problem of Pain. HarperCollins ed. San Francisco: HarperSanFrancisco, 2001.

MLA (8th ed.) Citation

Lewis, C. S. The Problem of Pain. HarperCollins ed. HarperSanFrancisco, 2001.

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