APA (7th ed.) Citation

DiTerlizzi, T., & Black, H. (2004). The ironwood tree. Simon & Schuster Books for Young Readers.

Chicago Style (17th ed.) Citation

DiTerlizzi, Tony, and Holly Black. The Ironwood Tree. New York: Simon & Schuster Books for Young Readers, 2004.

MLA (9th ed.) Citation

DiTerlizzi, Tony, and Holly Black. The Ironwood Tree. Simon & Schuster Books for Young Readers, 2004.