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005 | 20210223125019.0 | ||
008 | 030619s2000 mx r 000 0 spa d | ||
035 | _aUPN01000126148 | ||
049 | _aSEP | ||
050 | 4 |
_aAC75 _bS4 no.134 |
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100 | 1 |
_aLeón López, Enrique G. _928992 |
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245 | 1 | 3 | _aLa ingeniería en México |
905 | _aLibro | ||
999 |
_c98327 _d98327 |