APA (7th ed.) Citation

Westerfeld, S. (2017). Horizon (First edition.). Scholastic Inc.

Chicago Style (17th ed.) Citation

Westerfeld, Scott. Horizon. First edition. New York, NY: Scholastic Inc, 2017.

MLA (9th ed.) Citation

Westerfeld, Scott. Horizon. First edition. Scholastic Inc, 2017.