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|a 970-625-137-5
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Panamá
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| 041 |
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|a spa
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| 082 |
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|a 510
|b Sa5
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| 100 |
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|a Santos Trigo, Luz Manuel
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| 245 |
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|a Perspectivas en educación matemática /
|c Luz Manuel Santos Trigo, Ernesto Sánchez Sánchez
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| 260 |
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|a México :
|b Grupo Editorial Iberoamericano,
|c c1996
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| 300 |
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|a xi, 133 p. ;
|b ilus. ;
|c 20 cm.
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| 650 |
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|a MATEMATICAS-
|x ESTUDIO Y ENSEÑANZA
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|b CRU - Coclé
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