APA (7th ed.) Citation

Liddell, R., Davies, S., & Hewitson, T. (2020). Horizon. BBC Worldwide.

Chicago Style (17th ed.) Citation

Liddell, Rob, Serena Davies, and Tom Hewitson. Horizon. London, England: BBC Worldwide, 2020.

MLA (9th ed.) Citation

Liddell, Rob, et al. Horizon. BBC Worldwide, 2020.