Recognition distances and understanding of legends on an experimental motorway signal
| 主要作者: | |
|---|---|
| 其他作者: | |
| 格式: | 图书 |
| 语言: | English |
| 出版: |
Crowthorne, [Eng.]
Transport and Road Research Laboratory
1979.
|
| 丛编: | Supplementary report - Transport and Road Research Laboratory
500 |