Continuing project to synthesize information on highway problems.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington, D.C.
Transportation Research Board, National Research Council
[1997]
|
| Cyfres: | Research results digest (National Cooperative Highway Research Program)
no. 219. |
| Pynciau: |