APA (7th ed.) Citation

Mackinder, A., & Seare, N. (2017). Horizon. BBC Worldwide.

Chicago Style (17th ed.) Citation

Mackinder, Annie, and Nikki Seare. Horizon. London, England: BBC Worldwide, 2017.

MLA (9th ed.) Citation

Mackinder, Annie, and Nikki Seare. Horizon. BBC Worldwide, 2017.