806 resultados para survey data protocol
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Federal Highway Administration, Washington, D.C.
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Federal Highway Administration, Office of Safety and Traffic Operations Research Development, McLean, Va.
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Federal Highway Administration, Washington, D.C.
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"June 2002"--T.p. verso."
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"June 2001."
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"March 1990."
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Federal Highway Administration, Washington, D.C.
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National Highway Traffic Safety Administration, Washington, D.C.
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"January 1982."
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National Highway Traffic Safety Administration, Washington, D.C.
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Mode of access: Internet.
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Mode of access: Internet.
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Title varies.
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Title varies slightly.
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Mode of access: Internet.