APA (7th ed.) Citation

Schlesinger, J., Williams, B., Finch, P., Jackson, G., & Head, M. (2009). Sunday, Bloody Sunday. Optimum.

Chicago Style (17th ed.) Citation

Schlesinger, John, Billy Williams, Peter Finch, Glenda Jackson, and Murray Head. Sunday, Bloody Sunday. London: Optimum, 2009.

MLA (9th ed.) Citation

Schlesinger, John, et al. Sunday, Bloody Sunday. Optimum, 2009.