| 000 | 00545nam a2200145 a 4500 | ||
|---|---|---|---|
| 005 | 20220228110531.0 | ||
| 035 | _aF8901000703942 | ||
| 084 | _aHRB REC 451 1973 | ||
| 245 | _aHighway and bridge maintenance : Operations, costs and mode-ling, 6 reports / Highway Research Board. | ||
| 260 | _aWashington, D.C. : HRB | ||
| 300 | _a62 p. | ||
| 440 | _aRecord ; 451 / Highway Research Board | ||
| 690 | _aCarreteras - Mantenimiento y reparación.Puentes - Cubiertas - Deterioro. | ||
| 710 | _aE.U.A. National Research Council. Highway Research Board. | ||
| 999 |
_c55475 _d55475 |
||