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|a Schiefelbein, Ernesto
|9 64
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| 245 |
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|a Métodos para examinar antecedentes sobre repetición
|c Ernesto Schiefelbein
|h imp
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| 264 |
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|a Washington
|b O.E.A.
|c 1979
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| 300 |
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|a páginas: 9-38
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|a xxiii; 81
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|a Educacion
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|a Schiefelbein, Ernesto
|d Washington O.E.A. 1979
|o 100814
|w 100814
|t La Educación
|6 100814
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