APA (7th ed.) Citation

Donaldson, J., & Scheffler, A. (2019). The ugly five. Alison Green Books.

Chicago Style (17th ed.) Citation

Donaldson, Julia, and Axel Scheffler. The Ugly Five. UK: Alison Green Books, 2019.

MLA (9th ed.) Citation

Donaldson, Julia, and Axel Scheffler. The Ugly Five. Alison Green Books, 2019.

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