APA (7th ed.) Citation

McKinley, R., & Warren, D. (1992). The blue sword. Recorded Books.

Chicago Style (17th ed.) Citation

McKinley, Robin, and Diane Warren. The Blue Sword. Prince Frederick, MD: Recorded Books, 1992.

MLA (9th ed.) Citation

McKinley, Robin, and Diane Warren. The Blue Sword. Recorded Books, 1992.