000 | 00505nam a2200145 a 4500 | ||
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005 | 20220228110633.0 | ||
035 | _aF8901000709711 | ||
084 | _aTRB REC 493 1974 | ||
245 | _aTransportation research information services / Transportati-on Research Board. | ||
260 | _aWashington, D.C. : TRB | ||
300 | _a38 p. | ||
440 | _aRecord ; 493 / Transportation Research Board | ||
690 | _aTransporte - Proyectos e investigación. | ||
710 | _aNational Research Council. Transportation Research Board (E-.U.A.) | ||
999 |
_c59534 _d59534 |