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Geology and Mining Industry of Leadville, Colorado, ... by Samuel Franklin Emmons. [With Appendices by W. Cross, W.F. Hillebrand and A. Guyard.].

Samuel Franklin Emmons

出版	U.S. Government Printing Office, 1886
URL	http://books.google.com.hk/books?id=GrZbtwAACAAJ&hl=&source=gbs_api