APA (7th ed.) Citation

FilmFour (Firm), Ridley, J., Zimmer, H., Pitt, B., Ejiofor, C., Fassbender, M., . . . Northup, S. 12 years a slave.

Chicago Style (17th ed.) Citation

FilmFour (Firm), et al. 12 Years a Slave. ©2013.

MLA (9th ed.) Citation

FilmFour (Firm), et al. 12 Years a Slave.

Warning: These citations may not always be 100% accurate.