000 00511nam a2200145 a 4500
005 20220228110530.0
035 _aF8901000703823
084 _aHRB REC 325 1970
245 _aTraffic signals and signs, 5 reports / Highway Research Boa-rd.
260 _aWashington, D.C. : HRB
300 _a61 p.
440 _aRecord ; 325 / Highway Research Board
690 _aCarreteras - Signos y señales.Conductores (automóviles) - Características.
710 _aE.U.A. National Research Council. Highway Research Board.
999 _c55358
_d55358