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Mine safety appliance legislation in the United States

Thesis (M.A. in Political Science)--Columbia University, 1912.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/463892514
CreatorsDe Leon, Solon.
Publisher[New York, & c1912]
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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