APA (7th ed.) Citation

Leonard, P., Duncan, A., Thompson, A., & Ainsworth, M. (2021). Horizon: A Horizon special : what we know now. BBC Worldwide.

Chicago Style (17th ed.) Citation

Leonard, Peter, Alastair Duncan, Andrew Thompson, and Matthew Ainsworth. Horizon: A Horizon Special : What We Know Now. London, England: BBC Worldwide, 2021.

MLA (9th ed.) Citation

Leonard, Peter, et al. Horizon: A Horizon Special : What We Know Now. BBC Worldwide, 2021.