916 resultados para Gold mines and mining


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Fiscal year coverage, 1971-1975; calendar year coverage, 1976-1980.

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No. 33 is the final no. of this series.

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"RMO-563."

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Shipping list no.: 87-704-P.

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First-third reports, 1915/16-1917/18, issued as California State Mining Bureau Bulletin no. 73, 82, 84.

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"This skeleton form of report was framed to assist practical Miners and Mine Owners ... in making a comprehensive report"--T.p.

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Reprint of the London, 1888 ed.