APA (7th ed.) Citation

WGBH Video (Firm) & Clark, L. (2004). Descent into the ice. WGBH.

Chicago Style (17th ed.) Citation

WGBH Video (Firm) and Liesl Clark. Descent into the Ice. [United States]: WGBH, 2004.

MLA (8th ed.) Citation

WGBH Video (Firm) and Liesl Clark. Descent into the Ice. WGBH, 2004.

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