APA (7th ed.) Citation

Keene, C., & Birschbach, J. (2010). Nancy's mysterious letter (Unabridged.). Phoenix Books, Inc..

Chicago Style (17th ed.) Citation

Keene, Carolyn, and Jessie Birschbach. Nancy's Mysterious Letter. Unabridged. Beverly Hills: Phoenix Books, Inc., 2010.

MLA (8th ed.) Citation

Keene, Carolyn, and Jessie Birschbach. Nancy's Mysterious Letter. Unabridged. Phoenix Books, Inc., 2010.

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