APA (7th ed.) Citation

Dahl, R., Blake, Q., & Baldwin, J. (2001). Roald Dahl's even more revolting recipes. Viking.

Chicago Style (17th ed.) Citation

Dahl, Roald, Quentin Blake, and Jan Baldwin. Roald Dahl's Even More Revolting Recipes. New York: Viking, 2001.

MLA (9th ed.) Citation

Dahl, Roald, et al. Roald Dahl's Even More Revolting Recipes. Viking, 2001.