APA (7th ed.) Citation

Lim, R., & Freake, C. Messiest monster ever. Ladybird Books Ltd.

Chicago Style (17th ed.) Citation

Lim, Rebecca, and Caroline Freake. Messiest Monster Ever. London: Ladybird Books Ltd.

MLA (9th ed.) Citation

Lim, Rebecca, and Caroline Freake. Messiest Monster Ever. Ladybird Books Ltd.

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