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Colonizing the Planets
Erik Bergaust
出版Putnam, 1975
主題Technology & Engineering / Aeronautics & Astronautics
ISBN039960961X9780399609619
URLhttp://books.google.com.hk/books?id=SE1Vj8QFGMMC&hl=&source=gbs_api
註釋Discusses space exploration by manned and unmanned flights and speculates about planetary colonization.