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245 | 0 | _aMétodos de la investigación pedagógica | |
250 | 4 | _a4 | |
300 | 4 | _a200 p. \ 20 cm | |
650 |
_a1.Educación _z-Investigación |
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942 | _cIT01 | ||
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_aMéxico : _bEds. Quinto Sol _c |
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