APA引文

Napper, E., & Attenborough, D. (2019). Seven worlds, one planet. BBC Worldwide.

Chicago Style (17th ed.) Citation

Napper, Emma, and David Attenborough. Seven Worlds, One Planet. London, England: BBC Worldwide, 2019.

MLA引文

Napper, Emma, and David Attenborough. Seven Worlds, One Planet. BBC Worldwide, 2019.