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Contributions to economic geology (short papers and preliminary reports), 1909. Part I. - Metals and nonmetals except fuels, [by] C.W. Hayes and Waldemar Lindgren, geologists in ch...
Published 1910Online Access
Government Document Electronic eBook -
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Contributions to economic geology, 1907. Part I. -- Metals and nonmetals, except fuels, [by] C.W. Hayes and Waldemar Lindgren, geologists in charge. [U.S. Geological Survey Bulleti...
Published 1908Online Access
Government Document Electronic eBook