APA (7th ed.) Citation

Welles, O., Toland, G., Moorehead, A., & Shannon, H. (2016). Citizen Kane. Warner.

Chicago Style (17th ed.) Citation

Welles, Orson, Gregg Toland, Agnes Moorehead, and Harry Shannon. Citizen Kane. London: Warner, 2016.

MLA (9th ed.) Citation

Welles, Orson, et al. Citizen Kane. Warner, 2016.