APA (7th ed.) Citation

Once Upon A Time Films (Firm), Morrow-Heus Company, GT Media (Firm), Goodell, G., McLoughlin, T., Sutherland, D., . . . McDonnell, M. (2007). Behind the mask. GT Media.

Chicago Style (17th ed.) Citation

Once Upon A Time Films (Firm), et al. Behind the Mask. New York: GT Media, 2007.

MLA (9th ed.) Citation

Once Upon A Time Films (Firm), et al. Behind the Mask. GT Media, 2007.