APA (7th ed.) Citation

Oppel, K. (2014). The Boundless (First edition.). Simon & Schuster Books for Young Readers.

Chicago Style (17th ed.) Citation

Oppel, Kenneth. The Boundless. First edition. New York: Simon & Schuster Books for Young Readers, 2014.

MLA (9th ed.) Citation

Oppel, Kenneth. The Boundless. First edition. Simon & Schuster Books for Young Readers, 2014.

Warning: These citations may not always be 100% accurate.