Archaeometry · 1991 · 44 citations · 12 references
HumanitiesHuman GeographyIndigenous StudiesInternational TradeNative American StudiesInternational Commodity TradeMetal Commodity MarketsNative American EconomicsTrade GeographyNative Copper
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Age of native copper mineralization, Keweenaw Peninsula, Michigan
Theodore J. Bornhorst, James B. Paces, Norman K. Grant et al. · Economic Geology · 1988 · 87 citations