Russell, E. R., Butcher , T., & Michael , H. L. A quick, inexpensive data collection technique for approach speed analysis. Traffic engineering : official publication of the Institute of Transportation Engineers.
Citace podle Chicago (17th ed.)Russell, Eugene R., Thomas Butcher , a Harold L. Michael. "A Quick, Inexpensive Data Collection Technique for Approach Speed Analysis." Traffic Engineering : Official Publication of the Institute of Transportation Engineers .
Citace podle MLA (9th ed.)Russell, Eugene R., et al. "A Quick, Inexpensive Data Collection Technique for Approach Speed Analysis." Traffic Engineering : Official Publication of the Institute of Transportation Engineers, .
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