Vehicles, roads, and road use alternative empirical specifications
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington, D.C.
World Bank
1998.
|
| Cyfres: | Policy research working paper
2036 |
| Pynciau: |