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Contributions to economic geology (short papers and preliminary reports), 1921. Part I. -- Metals and nonmetals except fuels, [by] F.L. Ransome and E.F. Burchard, geologists in cha...
Published 1922Subjects: Online Access
Government Document Electronic eBook -
2
Mineral Resources of the United States, 1920, [by] G.F. Loughlin, geologist in charge, Division of Mineral Resources. Part I. -- Metals, [by] G.F. Loughlin, geologist in charge
Published 1922Subjects: Online Access
Government Document Electronic eBook