APA (7th ed.) Citation

Lisle, J. T., & Ackroyd, D. (2007). Black duck (Unabridged.). Listening Library.

Chicago Style (17th ed.) Citation

Lisle, Janet Taylor, and David Ackroyd. Black Duck. Unabridged. New York: Listening Library, 2007.

MLA (8th ed.) Citation

Lisle, Janet Taylor, and David Ackroyd. Black Duck. Unabridged. Listening Library, 2007.