Changeable message signs
- Författare
- American Association of State Highway and Transporation Officials National Research Council (U.S.) Conrad L. Dudek
- (Conrad L. Dudek., "Transportation Research Board, National Research, "Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration.")
- Genre
- Ej skönlitteratur
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| National Academy Press | 1997 | USA, Washington, D.C | 57 sidor. ill. |