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Night visibility : presented at the 31st annual meeting, January, 1952. National Research Council
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-second annual meeting, Jan. 13-16, 1953. National Research Council (U.S.). Highway Research Board.
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Night visibility, 1959. National Research Council (U.S.). Highway Research Board. Committee on
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Night visibility; 5 reports. National Research Council (U.S.). Highway Research Board.
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