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Scientific American

December 1, 1921

1 min read

Railways of the World

Comparison of the Mileage, Equipment, Working Force and Total Investment of the Eight Leading Railroad Systems

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This article was originally published with the title “Railways of the World” in Scientific American Magazine Vol. 125 No. 18 (December 1921), p. 91
doi:10.1038/scientificamerican1221-91

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