942 resultados para Emerald mines and mining
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Mode of access: Internet.
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Mode of access: Internet.
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"February 1983."
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"April 1989."
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"Archie Fulton, Lansing, James A. Orr, Weir City, Edward Bartow, Lawrence."
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Mode of access: Internet.
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Mode of access: Internet.
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Includes bibliographical references (p. 39-40).
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Project no.: 80.214.
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Cover title.
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"July, 1980."
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Funded by the U.S. Dept. of Interior, Office of Surface Mining Reclamation and Enforcement.
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No Spanish ed. in: NUC pre-1956, BLC, Sabin, Palau y Dulcet (2nd ed.).
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Mode of access: Internet.
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Chiefly tables.