Holbrook, S. H. (1947). The story of American railroads. New York: Crown Publishers.
Dyfyniad Arddull ChicagoHolbrook, Stewart H. The Story of American Railroads. New York: Crown Publishers, 1947.
Dyfyniad MLAHolbrook, Stewart H. The Story of American Railroads. New York: Crown Publishers, 1947.
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