APA (7th ed.) Citation

Gier, K., & Calin, M. (2011). Ruby red: The ruby red trilogy series, book 1 (Unabridged.). Macmillan Young Listeners.

Chicago Style (17th ed.) Citation

Gier, Kerstin, and Marisa Calin. Ruby Red: The Ruby Red Trilogy Series, Book 1. Unabridged. New York: Macmillan Young Listeners, 2011.

MLA (8th ed.) Citation

Gier, Kerstin, and Marisa Calin. Ruby Red: The Ruby Red Trilogy Series, Book 1. Unabridged. Macmillan Young Listeners, 2011.

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