APA (7th ed.) Citation

Mull, B., & Nobbs, K. (2015). Crystal keepers (Unabridged.). Simon & Schuster Audio.

Chicago Style (17th ed.) Citation

Mull, Brandon, and Keith Nobbs. Crystal Keepers. Unabridged. New York, NY: Simon & Schuster Audio, 2015.

MLA (8th ed.) Citation

Mull, Brandon, and Keith Nobbs. Crystal Keepers. Unabridged. Simon & Schuster Audio, 2015.

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