BAERWALD, J. E. (1976). Transportation and traffic engineering handbook. Prentice-Hall.
Dyfyniad Arddull ChicagoBAERWALD, John E. Transportation and Traffic Engineering Handbook. Englewood Cliffs: Prentice-Hall, 1976.
Dyfyniad MLABAERWALD, John E. Transportation and Traffic Engineering Handbook. Prentice-Hall, 1976.
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