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Railroad safety problems federal safety legislation and administration,

Thesis (Ph. D.)--University of Pennsylvania, 1930. / Bibliography: 2 p. at end.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/613950555
Date January 1900
CreatorsHsieh, Wen Lung,
Publisher[Shanghai, Printed at T. Chu,
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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