APA (7th ed.) Citation

Lewis, C. S., & Hooper, W. (1977). Fern-seed and elephants: And other essays on Christianity. Collins/Fountain Books.

Chicago Style (17th ed.) Citation

Lewis, C. S., and Walter Hooper. Fern-seed and Elephants: And Other Essays on Christianity. Glasgow: Collins/Fountain Books, 1977.

MLA (9th ed.) Citation

Lewis, C. S., and Walter Hooper. Fern-seed and Elephants: And Other Essays on Christianity. Collins/Fountain Books, 1977.