APA (7th ed.) Citation

Kvale, I., & Girardet, A. (2016). Steve Backshall's extreme river challenge. BBC Worldwide.

Chicago Style (17th ed.) Citation

Kvale, Ingrid, and Alexis Girardet. Steve Backshall's Extreme River Challenge. London, England: BBC Worldwide, 2016.

MLA (9th ed.) Citation

Kvale, Ingrid, and Alexis Girardet. Steve Backshall's Extreme River Challenge. BBC Worldwide, 2016.