APA (7th ed.) Citation

Blumhouse Productions. film production company, Landon, C., Diaz, J., & Jacobs, A. (2014). Paranormal activity. [Publisher not identified].

Chicago Style (17th ed.) Citation

Blumhouse Productions. film production company, Christopher Landon, Jorge Diaz, and Andrew Jacobs. Paranormal Activity. [Place of publication not identified]: [Publisher not identified], 2014.

MLA (8th ed.) Citation

Blumhouse Productions. film production company, et al. Paranormal Activity. [Publisher not identified], 2014.

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