APA (7th ed.) Citation

Touch Productions, National Geographic Channel (Television station : Washington, D.C.), Warner Home Video (Firm), & Maltby, C. (2008). Human footprint (Widescreen.).

Chicago Style (17th ed.) Citation

Touch Productions, D.C.) National Geographic Channel (Television station : Washington, Warner Home Video (Firm), and Clive Maltby. Human Footprint. Widescreen. 2008.

MLA (9th ed.) Citation

Touch Productions, et al. Human Footprint. Widescreen. 2008.