000 00366cam a22001217a 4500
008 180718b1961 xxu||||| |||| 00| 0 eng d
082 _aW4 Y12q
100 _aGreenshields, Bruce D.
245 _aQuality and theory of traffic flow
_cby Bruce D. Greenshields...[et.al]
260 _a
_bBureau of Highway Traffic
_c1961
300 _ax, 188p.
650 _aTraffic surveys
999 _c501351
_d501351