Cita APA (7a ed.)

Telenatura 2009. (2008). The Natural World: Iron Curtain Ribbon of Life. [BBC].

Cita Chicago Style (17a ed.)

Telenatura 2009. The Natural World: Iron Curtain Ribbon of Life. [USA]: [BBC], 2008.

Cita MLA (9a ed.)

Telenatura 2009. The Natural World: Iron Curtain Ribbon of Life. [BBC], 2008.