APA (7th ed.) Citation

Bullfrog Films, Zamparini, G., Meccoli, L., Chomsky, N., Zinn, H., & Vidal, G. (2003). XXI Century. Bullfrog films.

Chicago Style (17th ed.) Citation

Bullfrog Films, Gabriele Zamparini, Lorenzo Meccoli, Noam Chomsky, Howard Zinn, and Gore Vidal. XXI Century. Oley, Pa.: Bullfrog films, 2003.

MLA (8th ed.) Citation

Bullfrog Films, et al. XXI Century. Bullfrog films, 2003.