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Popular Science Vol.219 No.1 — July 1981
Popular Science Vol.219 No.2 — August 1981
Popular Science Vol.219 No.3 — September 1981
Popular Science Vol.219 No.4 — October 1981
Popular Science Vol.219 No.5 — November 1981
Popular Science Vol.219 No.6 — December 1981
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Popular Science 1979-1981:
https://vk.com/wall-212590603?q=Popular%20Science
Popular Science 1977-1978:
https://vk.com/wall-209196746?q=Popular%20Science
Файл
Popular Science Vol.219 No.1 — July 1981.pdf
Файл
Popular Science Vol.219 No.2 — August 1981.pdf
Файл
Popular Science Vol.219 No.3 — September 1981.pdf
Файл
Popular Science Vol.219 No.4 — October 1981.pdf