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National Research Council (U.S.). Transportation Research Board.
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National Cooperative Highway Research Program.
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National Cooperative Highway Research Program.
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National Research Council (U.S.). Transportation Research Board.
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National Research Council (U.S.). Transportation Research Board.
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National Research Council (U.S.). Transportation Research Board.
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Conference on Household Travel Surveys: New Concepts and Research Needs (1995 : Irvine, Calif.)
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