National Research Council (U.S.). Highway Research Board. (1973). Traffic flow properties and theory: 6 reports. Highway Research Board, National Research Council.
Chicago-viite (17. p.)National Research Council (U.S.). Highway Research Board. Traffic Flow Properties and Theory: 6 Reports. Washington, D.C: Highway Research Board, National Research Council, 1973.
MLA-viite (9. p.)National Research Council (U.S.). Highway Research Board. Traffic Flow Properties and Theory: 6 Reports. Highway Research Board, National Research Council, 1973.
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