APA (7th ed.) Citation

Ruthven, J., Brownlow, M., & Attenborough, D. (2017). Blue planet II. BBC Worldwide.

Chicago Style (17th ed.) Citation

Ruthven, John, Mark Brownlow, and David Attenborough. Blue Planet II. London: BBC Worldwide, 2017.

MLA (9th ed.) Citation

Ruthven, John, et al. Blue Planet II. BBC Worldwide, 2017.