000			00577nam a2200169 a 4500
005			20220228110524.0
035			_aF8901000703385
084			_aHRB REP 54 1968
100			_aMichie, J.D.
245			_aLocation, selection, and maintenance of highway guardrails -and median barriers / J.D. Michie and L.R. Calcote.
260			_aWashington, D.C. : HRB
300			_a63 p.
440			_aReport / Highway Research Board ; 54
690			_aGuardacaminos - Mantenimiento.
700			_aCalcote, L.R., coaut.
710			_aE.U.A. National Research Council. Highway Research Board.
999			_c54967 _d54967