APA (7th ed.) Citation

National Geographic Society, WQED (Television station : Pittsburg, Pa.), Kane, D. B., Pomasanoff, A., & Skinner, T. (1979). The invisible world [videorecording]. The Society.

Chicago Style (17th ed.) Citation

National Geographic Society, Pa.) WQED (Television station : Pittsburg, Dennis B. Kane, Alex Pomasanoff, and Thomas Skinner. The Invisible World [videorecording]. Washington, D.C: The Society, 1979.

MLA (8th ed.) Citation

National Geographic Society, et al. The Invisible World [videorecording]. The Society, 1979.