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USGS OF 93-275

Grade and tonnage model of porphyry Cu deposits in British Columbia, Canada, and Alaska, U.S.A.

Bibliographic Reference

Menzie, D.W., and Singer, D.A., 1993, Grade and tonnage model of porphyry Cu deposits in British Columbia, Canada, and Alaska, U.S.A.: U.S. Geological Survey Open-File Report 93-275, 9 p.

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