APA (7th ed.) Citation

Hildebrandt, T., & Hildebrandt, G. J.R.R. Tolkien desk calendar. Ballantine Books.

Chicago Style (17th ed.) Citation

Hildebrandt, Tim, and Greg Hildebrandt. J.R.R. Tolkien Desk Calendar. New York: Ballantine Books.

MLA (8th ed.) Citation

Hildebrandt, Tim, and Greg Hildebrandt. J.R.R. Tolkien Desk Calendar. Ballantine Books.