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| LEADER |
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| 041 |
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|a spa
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| 082 |
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|a 372.197284
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| 110 |
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|
|a El Salvador. Ministerio de Educación
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| 245 |
0 |
0 |
|a Programa de estudios sexto grado educación básica /
|c Ministerio de Educación.
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| 260 |
|
|
|a San Salvador :
|b Laser,
|c 1996
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| 300 |
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|a 574 p. ;
|b il.
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| 650 |
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|a Educación primaria-El Salvador
|2 lemb
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7 |
|a Educación primaria-planes de estudio
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| 942 |
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|c BK
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