Recognition distances and understanding of legends on an experimental motorway signal
| Huvudupphovsman: | |
|---|---|
| Övriga upphovsmän: | |
| Materialtyp: | Bok | 
| Språk: | English | 
| Publicerad: | Crowthorne, [Eng.]
          Transport and Road Research Laboratory
    
        1979. | 
| Serie: | Supplementary report - Transport and Road Research Laboratory
              500 |