| 000 | 00461nam a22001217a 4500 | ||
|---|---|---|---|
| 008 | 230720b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 245 |
_aRoad research: _bElectronic aids for freeway operation _c/ A report prepared by an OECD Research Group April 1971 |
||
| 260 |
_aParis: _bOrganization for Economic Co-Operation and Development, _c1971 |
||
| 300 | _a63p. | ||
| 650 | _aReport | ||
| 942 |
_2udc _cREP |
||
| 999 |
_c53668 _d53668 |
||