APA (7th ed.) Citation

Cowell, C. (2017). The wizard of once. Hodder Children's Books.

Chicago Style (17th ed.) Citation

Cowell, Cressida. The Wizard of Once. London: Hodder Children's Books, 2017.

MLA (9th ed.) Citation

Cowell, Cressida. The Wizard of Once. Hodder Children's Books, 2017.

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