APA (7th ed.) Citation

Greengrass, P. (2006). United 93. Universal Pictures Iberia.

Chicago Style (17th ed.) Citation

Greengrass, Paul. United 93. Madrid: Universal Pictures Iberia, 2006.

MLA (9th ed.) Citation

Greengrass, Paul. United 93. Universal Pictures Iberia, 2006.

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