Cita APA (7a ed.)

Nasmith, T., Nasmith, B., Wiggins, A., Chessnut, C., & Tolkien, J. R. R. (2007). The hidden door: Songs in the key of enchantment. Ted Nasmith.

Cita Chicago Style (17a ed.)

Nasmith, Ted, Bruce Nasmith, Alison Wiggins, Carrie Chessnut, y J. R. R. Tolkien. The Hidden Door: Songs in the Key of Enchantment. [Markham, Ont.]: Ted Nasmith, 2007.

Cita MLA (8a ed.)

Nasmith, Ted, et al. The Hidden Door: Songs in the Key of Enchantment. Ted Nasmith, 2007.