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|a 523.1
|2 20
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|a Gangui, Alejandro
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|a Cosmología /
|c Alejandro Gangui
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| 260 |
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|a Buenos Aires :
|b Ministerio de Educación de la Nación,
|c 2009
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| 300 |
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|a 172 p
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| 490 |
0 |
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|a Las ciencias naturales y las matemáticas
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|a Registros migrados a formato MARC
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| 650 |
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|a ASTRONOMIA
|2 Unescot
|9 1591
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|a COSMOLOGIA
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|c BK
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|a CA100517
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|c 49104
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