000 00553 a2200241 4500
001 273234
020 _a
041 _aeng
080 _aLTRB NCHRP SHP 139 : 1988
245 _aPedestrians and traffic-control measures
250 _a
260 _aWashington, D.C.
260 _bTransportation Research Board
260 _c1988
300 _a76 p.
300 _c
856 _u
490 _aTRB NCHRP SHP 139 : 1988
700 _a
650 _a
650 _aTransportation safety, Human factors, Operations and traffic control
942 _cPP
942 _2UDC
999 _c228947
_d228947