Rates of return: class I line-haul railways of the United States, 1921-1948. : An analysis and an appraisal embodying a comparison with other industries regulated and unregulated /
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| Format: | Book |
| Language: | English |
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[Pittsburgh] :
University of Pittsburgh Press,
1950.
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| Physical Description: | xiv, 211 pages : diagrams (part color) tables. ; 24 cm. |
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