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| 008 | 991125s1991 mx 000 0 spa u | ||
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| 049 | _aLT | ||
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_aLB1651 M6.1 _bC54 1991 |
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_aCiencias naturales : _bprimer curso / _cJuan Castellanos Iturriaga ... [et al.]. |
| 250 | _a14a ed. | ||
| 260 |
_aMéxico : _bEsfinge, _c1991. |
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| 300 |
_a359 p. : _bil. |
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| 650 | 4 |
_aCiencias naturales _xEstudio y enseñanza (Secundaria) _97979 |
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_aCastellanos Iturriaga, Juan _944792 _ecoaut. |
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| 905 | _aLibro | ||
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_c52572 _d52572 |
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