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_aHN 29 _bT4 |
| 100 | 1 | _aTenorio Bahena, Jorge | |
| 245 | 1 | 0 | _aIntroducción a la investigación social |
| 260 |
_aMéxico : _bMcGraw-Hill, _c1990 |
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| 300 |
_a106 p. ; _c23 cm. |
||
| 650 | 4 | _aInvestigación social | |
| 650 | 4 |
_aCiencias sociales - _xInvestigación |
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