APA (7th ed.) Citation

Jones, D. W., & Sterlin, J. (2009). Castle in the air (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Jones, Diana Wynne, and Jenny Sterlin. Castle in the Air. Unabridged. Prince Frederick: Recorded Books Inc., 2009.

MLA (8th ed.) Citation

Jones, Diana Wynne, and Jenny Sterlin. Castle in the Air. Unabridged. Recorded Books Inc., 2009.

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