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Sketch of the Different Mining and Mechanical Operations Employed in Some of the South American Goldworks as Well Ancient as Modern

其他書名	With Maps, Showing the Route from the Atlantic, and the Relative Situation of the Different Mineral Deposits &c., Particulary Those of the Province of Antioquia in New Granada
出版	The Company, 1834
URL	http://books.google.com.hk/books?id=W8Tc0AEACAAJ&hl=&source=gbs_api