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Long-range Forecasting and Planning, a Symposium Held at the U.S. Air Force Academy, Colorade, 16-17 August 1966
United States. Air Force Department
出版U.S. Department of Commerce, 1967
URLhttp://books.google.com.hk/books?id=_OhHuD-Vve8C&hl=&source=gbs_api
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