共 15 条
[1]
*AA CBI, 1997, TRANSP LINKS EC
[2]
BLY PH, 1995, TRL ANN REV, P1
[3]
DARGAY JM, 1995, J TRANSP ECON POLICY, V29, P179
[4]
*DEP ENV TRANSP RE, 1998, NEW DEAL TRANSP BETT
[5]
*DEP ENV TRANSP RE, 1996, NAT CYCL STRAT 1 YEA
[6]
*DEP TRANSP, 1986, NAT TRAV SURV 1986
[7]
*DEP TRANSP, 1997, NAT ROAD TRAFF FOR
[8]
*DEP TRANSP, 1996, TRANSP STAT GREAT BR
[9]
*FW SMITH ASS, 1968, W MIDL TRANSP STUD
[10]
GOODWIN PB, 1992, J TRANSP ECON POLICY, V26, P155

