Landon, C. E. (1951). Transportation; principles, practices, problems. Sloane.
Dyfyniad Arddull ChicagoLandon, Charles Edward. Transportation; Principles, Practices, Problems. New York: Sloane, 1951.
Dyfyniad MLALandon, Charles Edward. Transportation; Principles, Practices, Problems. Sloane, 1951.
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