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AR-EsUNPB |
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150818s1960 ag r 000 0 spa d |
| 040 |
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|a AR-EsUNPB
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| 082 |
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|a 551.701
|2 20
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| 100 |
1 |
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|a Hurley, Patrick M.
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| 245 |
1 |
2 |
|a ¿Qué edad tiene la Tierra? /
|c Patrick M. Hurley
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| 260 |
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|a Buenos Aires :
|b Editorial Universitaria de Buenos Aires,
|c 1960
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| 300 |
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|a 158 p
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| 490 |
0 |
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|a Ciencia joven
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| 590 |
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|a Registros migrados a formato MARC
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| 650 |
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7 |
|a GEOLOGIA
|2 Unescot
|9 3441
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| 650 |
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4 |
|a GEOLOGIA HISTORICA
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| 650 |
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4 |
|a TIERRA (PLANETA)
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| 650 |
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4 |
|a RADIACTIVIDAD
|9 5409
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| 942 |
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|c BK
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| 999 |
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|c 45740
|d 45740
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