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 |