| 000 | 00553nam a2200145 a 4500 | ||
|---|---|---|---|
| 005 | 20220228110538.0 | ||
| 035 | _aF8901000704504 | ||
| 084 | _aTRB REC 1131 1987 | ||
| 245 | _aPerformance of aggregates in railroads and other track perf-ormance issues / Transportation Research Board. | ||
| 260 | _aWashington, D.C. : TRB | ||
| 300 | _a106 p. | ||
| 440 | _aRecord ; 1131 / Transportation Research Board | ||
| 690 | _aAgregados minerales - Pruebas.Suelos - Pruebas.Balastos. | ||
| 710 | _aNational Research Council. Transportation Research Board (E-.U.A.) | ||
| 999 |
_c55921 _d55921 |
||