APA (7th ed.) Citation

DiTerlizzi, T., & Black, H. (2004). The ironwood tree: Book four of five. Simon and Schuster.

Chicago Style (17th ed.) Citation

DiTerlizzi, Tony, and Holly Black. The Ironwood Tree: Book Four of Five. New York: Simon and Schuster, 2004.

MLA (9th ed.) Citation

DiTerlizzi, Tony, and Holly Black. The Ironwood Tree: Book Four of Five. Simon and Schuster, 2004.