Operational and maintenance problems with highway safety appurtenances.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington, DC
Transportation Research Board, National Academy of Sciences
[1984]
|
| Cyfres: | Transportation Research Circular
Number 279 |
| Pynciau: |