APA (7th ed.) Citation

Alpha Video Distributors, Cutts, G., Lipscomb, W. P., Wontner, A., Hunter, I., & Doyle, A. C. (2003). Sign of four. Alpha Video.

Chicago Style (17th ed.) Citation

Alpha Video Distributors, Graham Cutts, W. P. Lipscomb, Arthur Wontner, Ian Hunter, and Arthur Conan Doyle. Sign of Four. Narbeth, PA: Alpha Video, 2003.

MLA (9th ed.) Citation

Alpha Video Distributors, et al. Sign of Four. Alpha Video, 2003.