APA (7th ed.) Citation

Coelho, P., & Costa, M. J. (2007). The witch of Portobello. HarperCollins.

Chicago Style (17th ed.) Citation

Coelho, Paulo, and Margaret Jull Costa. The Witch of Portobello. London: HarperCollins, 2007.

MLA (8th ed.) Citation

Coelho, Paulo, and Margaret Jull Costa. The Witch of Portobello. HarperCollins, 2007.

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