APA (7th ed.) Citation

Attenborough, R. Tierras de penumbra. Creative films.

Chicago Style (17th ed.) Citation

Attenborough, Richard. Tierras De Penumbra. [S.l.]: Creative films.

MLA (9th ed.) Citation

Attenborough, Richard. Tierras De Penumbra. Creative films.

Warning: These citations may not always be 100% accurate.