Gold panning (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Gold panning" in English language version.

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1^st place

low place

low place

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archive.org

Silva, Michael A. (1986). Placer Gold Recovery Methods (No. 87). Sacramento, California: California Division of Mines and Geology. pp. 2–3.
Placer Mining: A Hand-book for Klondike and Other Miners and Prospectors. Scranton, Pa.: Colliery Engineering Co. 1897. pp. 96–97.
Wilson, E. B. (1907). Hydraulic and Placer Mining. New York: John Wiley & Sons. pp. 30–33.
Raymond, R.W. (1881). "batea". Glossary of Mining and Metallurgical Terms. Easton, Pa.: American Institute of Mining Engineers.

Various. "Gold Pans of Every Shape". ECO-MINEX INTERNATIONAL LTD. Archived from the original on August 1, 2010. Retrieved August 30, 2010.

Various (2006). "Ord Family Papers, Part 2". Georgetown University Libraries Special Collections, Lemelson Center. Georgetown University Library, 37th and N Streets, N.W., Washington, D.C., 20057. Retrieved December 30, 2009.Note: Call number 90A469 in four series. Series 1 deal with correspondence 1940 to 1963. SERIES: 5. E.O.C. Ord II: Patents and Printed Materials.

Various. "Gold Pans of Every Shape". ECO-MINEX INTERNATIONAL LTD. Archived from the original on August 1, 2010. Retrieved August 30, 2010.