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Economic problems and results of electrification of steam railroadsin the United States

Thesis (Ph. D.)--University of Pennsylvania, 1931. / "References" at end of each chapter.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/577864581
Date January 1931
CreatorsWong, Yun Yuan.
PublisherPhiladelphia,
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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