APA (7th ed.) Citation

Jeffers, O. (2021). Book of numbers. HarperCollins Children's Books.

Chicago Style (17th ed.) Citation

Jeffers, Oliver. Book of Numbers. London: HarperCollins Children's Books, 2021.

MLA (8th ed.) Citation

Jeffers, Oliver. Book of Numbers. HarperCollins Children's Books, 2021.

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