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_a300.72 _bBLA 1989 |
| 100 | 1 | _aBlalock, Hubert M. | |
| 245 | 1 | 0 | _aIntroducción a la investigación social |
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_aArgentina. _bAmorrortu _c1970 |
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| 300 | _a134 p. | ||
| 500 | _areimp. 1989 | ||
| 650 | 4 | _aInvestigación social | |
| 650 | 4 |
_aCiencias sociales _xmetodología |
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| 950 | _c20111027 | ||
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