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Visibility Criteria for Signs, Signals, and Roadway Lighting
National Research Council (U.S.). Transportation Research Board
出版Transportation Research Board, National Research Council, 1989
主題Technology & Engineering / Engineering (General)Technology & Engineering / Civil / Highway & TrafficTransportation / General
ISBN03090497259780309049726
URLhttp://books.google.com.hk/books?id=S2ec-w0WtVwC&hl=&source=gbs_api