993 resultados para United States. Bureau of Mines.
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no.91-101 (1906-1907)
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Mode of access: Internet.
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Mode of access: Internet.
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At head of title: no.
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"Publications relating to mining laws": p. 644-645.
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Mode of access: Internet.
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"December 1981."
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Cover title.
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Cover title.
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Bibliography: p.271-273.
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Bibliographical footnotes.