Innovations in travel survey methods
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
Washington, D.C.
National Academy Press
[1993]
|
| Cyfres: | Transportation research record
1412. |
| Pynciau: |


