| 000 | 00517 a2200241 4500 | ||
|---|---|---|---|
| 001 | 279790 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _aLTRB TRC 232 : 1981 | ||
| 245 | _aVisibility in construction and maintenance work zones | ||
| 250 | _a | ||
| 260 | _aWashington, D.C. | ||
| 260 | _bTRB | ||
| 260 | _c1981 | ||
| 300 | _a6 p. | ||
| 300 | _c | ||
| 856 | _u | ||
| 490 | _aTRB TRC 232 : 1981 | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aMaintenance, Human factors, Operations and traffic control | ||
| 942 | _cPP | ||
| 942 | _2UDC | ||
| 999 |
_c239116 _d239116 |
||