APA (7th ed.) Citation

Carpenter, R., Staplehurst, G., & Nicholson, R. (1987). The king's demon. Puffin Books.

Chicago Style (17th ed.) Citation

Carpenter, Richard, Graham Staplehurst, and Russ Nicholson. The King's Demon. Puffin Books, 1987.

MLA (9th ed.) Citation

Carpenter, Richard, et al. The King's Demon. Puffin Books, 1987.