APA (7th ed.) Citation

Roth, V., & Stanford, A. (2014). Four: A divergent collection (Unabridged.). Harper Audio.

Chicago Style (17th ed.) Citation

Roth, Veronica, and Aaron Stanford. Four: A Divergent Collection. Unabridged. [New York]: Harper Audio, 2014.

MLA (8th ed.) Citation

Roth, Veronica, and Aaron Stanford. Four: A Divergent Collection. Unabridged. Harper Audio, 2014.

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