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|a El Salvador.
|b Ministerio de Educación
|
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|a Libro de ciencia :
|b salud y medio ambiente, primer grado /
|c Ministerio de Educación
|
260 |
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|a San Salvador :
|b Ministerio de Educación,
|c s.f.
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|a 127 p. :
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|a Colección cipotes
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|a Asi es mi cuerpo
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|a Materia y energía
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|a Sanos y felices
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|a Los seres vivos y su medio
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|a Libros ilustrados para niños
|x Ciencias
|2 lemb
|
942 |
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|c BK
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|a cat_esmeralda
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