APA (7th ed.) Citation

Keene, C., & Wu, N. (2014). The sand castle mystery (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Keene, Carolyn, and Nancy Wu. The Sand Castle Mystery. Unabridged. Prince Frederick: Recorded Books Inc., 2014.

MLA (8th ed.) Citation

Keene, Carolyn, and Nancy Wu. The Sand Castle Mystery. Unabridged. Recorded Books Inc., 2014.

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