801 resultados para anonymity of research participants


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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Safety Bureau, Washington, D.C.

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Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin

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Includes bibliographical references (p. 39-46).

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California Traffic Safety Education Task Force

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National Highway Traffic Safety Administration, Washington, D.C.

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"September 2004"--P. [4] of cover.

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Description based on: No. 8 (spring 1978)