APA (7th ed.) Citation

Walliams, D., & Ross, T. (2020). The ice monster. HarperCollins Children's Books.

Chicago Style (17th ed.) Citation

Walliams, David, and Tony Ross. The Ice Monster. London: HarperCollins Children's Books, 2020.

MLA (9th ed.) Citation

Walliams, David, and Tony Ross. The Ice Monster. HarperCollins Children's Books, 2020.

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