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|a 70967
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|a Sistema de Bibliotecas de Universidad de Costa Rica
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|a spa
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|a 511
|b N277p
|2 22
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|a National Council of Teachers of Mathematics
|e Autor/a
|4 aut
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|a Proposiciones numericas /
|c National Council of Teachers of Mathematics, U.S.A. ; traduccion de Federico Galvan Anaya.
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| 250 |
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|a 1.edición
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| 260 |
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|a México :
|b Trillas,
|c 1968.
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| 300 |
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|a 58páginas
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| 500 |
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|a Reimpresiones : 1970, 1986.
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| 500 |
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|a Titulo original: Topics in mathematics for elementary school teachers.
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| 650 |
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|a ARITMETICA
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| 912 |
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|a 20-JUN-2012 - SALAZAR ALVAREZ, CLAUDIO
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| 949 |
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|a FG-FG BYA
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| 916 |
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|a Registros del LS-2000
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