Cofnodi Dyfyniadau
Dyfyniad APA
National Research Council (U.S.). Committee on School Transportation Safety & ebrary, Inc. (2002). The relative risks of school travel: A national perspective and guidance for local community risk assessment. Transportation Research Board.
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Dyfyniad Arddull Chicago
National Research Council (U.S.). Committee on School Transportation Safety and Inc ebrary. The Relative Risks of School Travel: A National Perspective and Guidance for Local Community Risk Assessment. Washington, DC: Transportation Research Board, 2002.
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Dyfyniad MLA
National Research Council (U.S.). Committee on School Transportation Safety and Inc ebrary. The Relative Risks of School Travel: A National Perspective and Guidance for Local Community Risk Assessment. Transportation Research Board, 2002.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.