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Office of General Superintendent, Pittsburgh, Ft. Wayne & Chicago Rail Road. Pittsburgh, Sept. 19, 1861
其他書名
To Employees of the P., Ft. W. & C.R.R. Co. The Frequency and Extent of Losses to the Company, Occurring by what are Usually Called Accidents, Calls for a More Close Examination Into the Causes of These Accidents, and More Rigid Rules Regarding Them. ...
出版1861
URLhttp://books.google.com.hk/books?id=RUNqmgEACAAJ&hl=&source=gbs_api