APA (7th ed.) Citation

Kroll, S., & Andreasen, D. (1997). Pony Express! (Rev. ed.). Scholastic Press.

Chicago Style (17th ed.) Citation

Kroll, Steven, and Dan Andreasen. Pony Express! Rev. ed. New York: Scholastic Press, 1997.

MLA (9th ed.) Citation

Kroll, Steven, and Dan Andreasen. Pony Express! Rev. ed. Scholastic Press, 1997.