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_aQ 125 _bI25 I56 |
| 245 | 1 | 0 | _aIntroduccción a la teoría de la Historia y de las Ciencias |
| 250 | _a2a ed. | ||
| 260 |
_aMéxico : _bUNAM, _c1989 |
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| 300 |
_a390 p. ; _c22 cm. |
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_aCiencia - _xHistoria |
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_aSaldaña, Juan José, _ecomp. |
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