APA (7th ed.) Citation

Creech, S., & Siegfried, M. (2004). Heartbeat. Harper Children's Audio.

Chicago Style (17th ed.) Citation

Creech, Sharon, and Mandy Siegfried. Heartbeat. [New York]: Harper Children's Audio, 2004.

MLA (8th ed.) Citation

Creech, Sharon, and Mandy Siegfried. Heartbeat. Harper Children's Audio, 2004.

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