APA (7th ed.) Citation

Lewis, C. S., & Baynes, P. (1988). The horse and his boy (1st published, 20th imp.). Lions.

Chicago Style (17th ed.) Citation

Lewis, C. S., and Pauline Baynes. The Horse and His Boy. 1st published, 20th imp. London: Lions, 1988.

MLA (9th ed.) Citation

Lewis, C. S., and Pauline Baynes. The Horse and His Boy. 1st published, 20th imp. Lions, 1988.

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