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| 245 | 0 | _aTEORIA PURA DEL DERECHO | |
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_aMEXICO _bUNIVERSIDA NACIONAL DE MEXICO _c1983 |
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| 630 | _aDERECHO LEGISLACION JURISPRU. | ||
| 650 | _aDERECHO GENERAL | ||
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