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| 245 | 0 | 0 | _aMaestros de la UPN : Profr. Josafat Adan Figueroa |
| 260 | _aMéxico | ||
| 300 | _a7 | ||
| 362 | 0 | _a1980 Vol. 1, no. 14, feb. | |
| 653 | 0 | _aFIGUEROA, JOSAFAT ADAN, 1937- | |
| 653 | 0 | _aMAESTROS | |
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