APA (7th ed.) Citation

Weissman, E. B. (2019). The length of a string. Puffin Books.

Chicago Style (17th ed.) Citation

Weissman, Elissa Brent. The Length of a String. New York: Puffin Books, 2019.

MLA (8th ed.) Citation

Weissman, Elissa Brent. The Length of a String. Puffin Books, 2019.

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