Office for Outer Space Affairs UN Office at Vienna. (1991). Seminars of the United Nations Programme on Space Applications: Selected Papers from Activities Held in 1991. United Nations.
Цитирование в стиле Чикаго (17-е изд.)Office for Outer Space Affairs UN Office at Vienna. Seminars of the United Nations Programme on Space Applications: Selected Papers from Activities Held in 1991. Geneva: United Nations, 1991.
Цитирование MLA (8-е изд.)Office for Outer Space Affairs UN Office at Vienna. Seminars of the United Nations Programme on Space Applications: Selected Papers from Activities Held in 1991. United Nations, 1991.
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