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|a 1089-9995
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|a AR-CrUNPB
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|a D150026
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|a Journal of geoscience education
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|a Washington :
|b National Association of Geoscience Teachers \NAGT\,
|c 1997-
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| 300 |
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|a impreso
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| 866 |
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|a 1997/98 45(1-4); 46(1,2,5)
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| 590 |
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|a Registros migrados a formato MARC. Clasificación Anterior: 354A
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| 650 |
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|a GEOLOGIA
|2 Unescot
|9 3441
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| 650 |
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|a CIENCIAS DE LA TIERRA
|2 Unescot
|9 2011
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| 942 |
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|c CR
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|c 100135
|d 100134
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