APA (7th ed.) Citation

Fothergill, A., Cordey, H., & Attenborough, D. (2006). Planet Earth. BBC Worldwide.

Chicago Style (17th ed.) Citation

Fothergill, Alastair, Huw Cordey, and David Attenborough. Planet Earth. London: BBC Worldwide, 2006.

MLA (9th ed.) Citation

Fothergill, Alastair, et al. Planet Earth. BBC Worldwide, 2006.