000 00467nam a22001457a 4500
020 _a0309052165
082 _a388
_bNAT
_cD
100 _aTRB
_919556
245 _aMaintenance management, traffic safety, and snow removal/
_bTransportation research record no 1352.
260 _aWashington DC:
_bNational academy press Washington DC
_cc1992
300 _a82 p.:
_bill.;
_c24 cm.
526 _a0
_b0
_c0
_d388_000000000000000_NAT
650 _aMCE
_9379
942 _2ddc
_cBK
999 _c543044
_d543044