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Thurmond, R.E., Olk, J.F., Komadina, G.A., Journeay, J.A., Spaulding, E.D., and Hernlund, R.W.
Mining Engineering, v. 10, no. 4, p. 453-462.
Mineral District, Porphyry Copper, History, Production, Mining Engineering, Ore,
