原文传递 A preliminary study of children's road-crossing knowledge in three developing countries
题名: A preliminary study of children's road-crossing knowledge in three developing countries
责任者: Downing, AJ,Sayer, IA
学科分类: 暂无分类
出版机构: Transport Research Laboratory
提交日期: Jan 1982
总页数: 20
报告类型: 科技报告
资源类型: 科技(咨询、行业)报告
初始创建时间: Jan 1982
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