Cita APA (7a ed.)

Attenborough, D., & Parsons, C. (2005). Life on earth. BBC Video.

Cita Chicago Style (17a ed.)

Attenborough, David, y Christopher Parsons. Life on Earth. [London]: BBC Video, 2005.

Cita MLA (9a ed.)

Attenborough, David, y Christopher Parsons. Life on Earth. BBC Video, 2005.