| 000 | 00473nam a2200145 a 4500 | ||
|---|---|---|---|
| 005 | 20220228110530.0 | ||
| 035 | _aF8901000703853 | ||
| 084 | _aHRB REC 358 1971 | ||
| 245 | _aCommunications and emergency services, 6 reports / Highway -Research Board. | ||
| 260 | _aWashington, D.C. : HRB | ||
| 300 | _a49 p. | ||
| 440 | _aRecord ; 358 / Highway Research Board | ||
| 690 | _aComunicaciones y tránsito. | ||
| 710 | _aE.U.A. National Research Council. Highway Research Board. | ||
| 999 |
_c55387 _d55387 |
||