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s1984 s1984 xxu ||||| eng |
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|a 33208
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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|a 553
|b G339m
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|a Gentry, Donald W.
|e Autor/a
|4 aut
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|a Mine investment analysis /
|c by Donald W. Gentry, Thomas J. O'Neil. --
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|a New York, New York :
|b Society of Mining Engineers of American Institute Metallurgical and Petroleum E,
|c 1984.
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|a 502 páginas
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|a MINAS
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| 650 |
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|a GEOLOGIA ECONOMICA
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|a O'Neil, Thomas J.
|e Autor/a
|4 aut
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| 949 |
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|a AE-AE b AE
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|a Registros del LS-2000
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