Wilson, G. L. (1930). Coördinated motor-rail-steamship transportation. D. Appleton.
Chicago-čujuhus (17. p.)Wilson, G. Lloyd. Coördinated Motor-rail-steamship Transportation. New York: D. Appleton, 1930.
MLA-čujuhus (9. p.)Wilson, G. Lloyd. Coördinated Motor-rail-steamship Transportation. D. Appleton, 1930.
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