Orcutt, F. L. J. Plotting spot-speed data. Traffic engineering : official publication of the Institute of Transportation Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Orcutt, Fred L. Jr. "Plotting Spot-speed Data." Traffic Engineering : Official Publication of the Institute of Transportation Engineers .
Παραπομπή σε μορφή MLA (9th εκδ.)Orcutt, Fred L. Jr. "Plotting Spot-speed Data." Traffic Engineering : Official Publication of the Institute of Transportation Engineers, .
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