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| 245 | 0 | 0 | _aXXX trigésimo aniversario del CINVESTAV-IPN |
| 260 | _aMéxico | ||
| 300 | _a114-118 | ||
| 362 | 0 | _a1992 Vol. 11, mar.-abr. | |
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| 653 | 0 | _aMEXICO | |
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