APA (7th ed.) Citation

Gesell, A., Ilg, F. L., & Ames, L. B. (1956). Youth: The years from ten to sixteen ([1st ed.].). Harper.

Chicago Style (17th ed.) Citation

Gesell, Arnold, Frances L. Ilg, and Louise Bates Ames. Youth: The Years from Ten to Sixteen. [1st ed.]. New York: Harper, 1956.

MLA (9th ed.) Citation

Gesell, Arnold, et al. Youth: The Years from Ten to Sixteen. [1st ed.]. Harper, 1956.