APA (7th ed.) Citation

Tennant, D. (2014). Penguins: Spy in the huddle (Wide screen.). BBC Earth.

Chicago Style (17th ed.) Citation

Tennant, David. Penguins: Spy in the Huddle. Wide screen. [London?]: BBC Earth, 2014.

MLA (8th ed.) Citation

Tennant, David. Penguins: Spy in the Huddle. Wide screen. BBC Earth, 2014.

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