APA (7th ed.) Citation

Cast, P. C., Cast, K., & Wren, E. (2007). Marked. Bolinda Audio.

Chicago Style (17th ed.) Citation

Cast, P. C., Kristin Cast, and Edwina Wren. Marked. [Tullamarine, Vic.]: Bolinda Audio, 2007.

MLA (9th ed.) Citation

Cast, P. C., et al. Marked. Bolinda Audio, 2007.