APA (7th ed.) Citation

Lewis, C. S. (1991). The four loves. Harcourt Brace.

Chicago Style (17th ed.) Citation

Lewis, C. S. The Four Loves. New York: Harcourt Brace, 1991.

MLA (8th ed.) Citation

Lewis, C. S. The Four Loves. Harcourt Brace, 1991.

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