Transportation economics; a conference of the Universities-National Bureau Committee for Economic Research.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
National Bureau of Econ. Res. : distributed by Columbia Univ. Press
[c1965]
|
| Cyfres: | National Bureau of Econ. REs. Special conference series, 17
|
| Pynciau: |