APA (7th ed.) Citation

Coelho, P., Wolf, R., & Costa, M. J. (2007). The witch of Portobello. Harper Audio.

Chicago Style (17th ed.) Citation

Coelho, Paulo, Rita Wolf, and Margaret Jull Costa. The Witch of Portobello. New York: Harper Audio, 2007.

MLA (9th ed.) Citation

Coelho, Paulo, et al. The Witch of Portobello. Harper Audio, 2007.

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