APA (7th ed.) Citation

Robinson, S., King, P., & Heron, Z. (2013). Horizon. British Broadcasting Corporation.

Chicago Style (17th ed.) Citation

Robinson, Sophie, Paul King, and Zoe Heron. Horizon. London, England: British Broadcasting Corporation, 2013.

MLA (9th ed.) Citation

Robinson, Sophie, et al. Horizon. British Broadcasting Corporation, 2013.