APA (7th ed.) Citation

Dessen, S., & Ahn, A. (2009). This lullaby (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Dessen, Sarah, and Ali Ahn. This Lullaby. Unabridged. Prince Frederick: Recorded Books Inc., 2009.

MLA (8th ed.) Citation

Dessen, Sarah, and Ali Ahn. This Lullaby. Unabridged. Recorded Books Inc., 2009.

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