Bakker. George P. & Germane, G. E. (1957). Case problems in transportation management. Mc Graw Hill.
Dyfyniad Arddull ChicagoBakker. George P. and Gaylon E. Germane. Case Problems in Transportation Management. New York: Mc Graw Hill, 1957.
Dyfyniad MLABakker. George P. and Gaylon E. Germane. Case Problems in Transportation Management. Mc Graw Hill, 1957.
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