APA (7th ed.) Citation

Dahl, R., & Black, Q. (2016). The witches. Puffin Books.

Chicago Style (17th ed.) Citation

Dahl, Roald, and Quentin Black. The Witches. London: Puffin Books, 2016.

MLA (9th ed.) Citation

Dahl, Roald, and Quentin Black. The Witches. Puffin Books, 2016.

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