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1
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 -
2
Contributions to economic geology (short papers and preliminary reports), 1913. Part I. -- Metals and nonmetals except fuels. By F.L. Ransome and Hoyt S. Gale, Geologists in Charge...
Published 1914Online Access
Government Document Electronic eBook -
3
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 1922Online Access
Government Document Electronic eBook -
4
Contributions to economic geology, 1905, [by] S.F. Emmons, E.C. Eckel, geologists in charge. [U.S. Geological Survey Bulletin No. 285. Series A, Economic Geology, 73.]
Published 1906Online Access
Government Document Electronic eBook -
5
Contributions to economic geology, 1902, [by] S.F. Emmons [and] C.W. Hayes, geologists in charge. [U.S. Geological Survey Bulletin No. 213. Series A, Economic Geology, 24.]
Published 1903Online Access
Government Document Electronic eBook -
6
Contributions to economic geology (short papers and preliminary reports), 1910. Part I. -- Metals and nonmetals except fuels. C.W. Hayes and Waldemar Lindgren, geologists in charge...
Published 1911Online Access
Government Document Electronic eBook