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| 005 | 20220227183300.0 | ||
| 008 | 991125s1988 mx 000 0 spa u | ||
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_aLE 7 _bM6 G65 |
| 100 | 1 | _aGonzález Valdéz, Ernesto | |
| 245 | 1 | 0 |
_aTesis profesionales, metodología y ejemplos / _cErnesto González Valdés |
| 260 |
_aMéxico : _bJ. Porrúa, _c1988 |
||
| 300 |
_a256 p. ; _c20 cm. |
||
| 650 | 4 |
_aTesis academicas - _xMéxico |
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| 650 | 4 |
_aTesis academicas - _xMéxico - _xBibliografía |
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