APA (7th ed.) Citation

Steffens, L., & Tousey, S. (1935). Boy on horseback. Harcourt, Brace.

Chicago Style (17th ed.) Citation

Steffens, Lincoln, and Sanford Tousey. Boy on Horseback. New York: Harcourt, Brace, 1935.

MLA (9th ed.) Citation

Steffens, Lincoln, and Sanford Tousey. Boy on Horseback. Harcourt, Brace, 1935.