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Geology and ore deposits of the Bullfrog district, Nevada, .. 

United States congressional serial set ; serial set no. 5750;House document / 61st Congress, 2nd session. House ; no. 185
Emmons, William Harvey ; Garrey, George H. ; Ransome, Frederick Leslie , 1910
Link: http://docs.newsbank.com/select/serialset/117BDCDD5509..