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| 082 |
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|a 570
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| 092 |
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|c 570
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| 245 |
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|a Ciencias naturales 7
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| 100 |
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|a Cynowiec, Esteban; Díaz, Marcela L.; Franco, Ricardo; y otros
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| 264 |
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|b Santillana
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| 250 |
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|a 1a. ed.
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| 300 |
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|a 256 p.; il. (Todos Protagonistas)
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| 650 |
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|a CIENCIAS NATURALES
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| 650 |
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|a EDUCACION PRIMARIA
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| 650 |
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|a ENSEÑANZA
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| 650 |
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|a TIERRA
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| 650 |
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|a UNIVERSO
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| 650 |
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|a SUBSISTEMAS TERRESTRES
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| 650 |
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|a TIEMPO Y CLIMA
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| 650 |
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|a GEOLOGIA DE LA TIERRA
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| 650 |
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|a RECURSOS ENERGÉTICOS
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| 650 |
|
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|a SISTEMAS MATERIALES
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| 650 |
|
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|a CALOR
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| 650 |
|
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|a SONIDO
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| 650 |
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|a LUZ
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| 650 |
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|a ORGANISMOS
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| 650 |
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|a REPRODUCCION
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| 650 |
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|a ECOSISTEMAS
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| 650 |
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|a POBLACION
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| 260 |
0 |
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|a Buenos Aires
|c 2005
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| 020 |
0 |
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|a 950-46-1484-1
|