APA (7th ed.) Citation

Lewis, C. S., & Hooper, W. (1977). Fern-seed and elephants: And other essays on Christianity (2nd impr.). Collins.

Chicago Style (17th ed.) Citation

Lewis, C. S., and Walter Hooper. Fern-seed and Elephants: And Other Essays on Christianity. 2nd impr. Glasgow: Collins, 1977.

MLA (8th ed.) Citation

Lewis, C. S., and Walter Hooper. Fern-seed and Elephants: And Other Essays on Christianity. 2nd impr. Collins, 1977.