National Geographic society, Washington, D. C. WQED (Television station : Pittsburg, Pa.), Saxon, D., & Hughes, D. (1977). Creatures of the Namib desert. National Geographic Video.
Citace podle Chicago (17th ed.)National Geographic society, Washington, D. C. WQED (Television station : Pittsburg, Pa.), David Saxon, a David Hughes. Creatures of the Namib Desert. [Washington, D. C.]: National Geographic Video, 1977.
Citace podle MLA (9th ed.)National Geographic society, Washington, D. C. WQED (Television station : Pittsburg, Pa.), et al. Creatures of the Namib Desert. National Geographic Video, 1977.
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