APA (7th ed.) Citation

Duffey, B., & Wilson, J. (1993). The math wiz. Puffin Books.

Chicago Style (17th ed.) Citation

Duffey, Betsy, and Janet Wilson. The Math Wiz. New York, N.Y., U.S.A.: Puffin Books, 1993.

MLA (8th ed.) Citation

Duffey, Betsy, and Janet Wilson. The Math Wiz. Puffin Books, 1993.

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