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_aQ180.A1 _bC3 1995 |
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_aCastañeda Jiménez, Juan. _93620 |
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_aMétodos de Investigación I / _cJuan Castañeda Jiménez. |
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_aMéxico : _bMcGraw-Hill, _c1995 |
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_ax, 144 p. : _bil. ; _c23 cm. |
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_aMetodología científica _96579 |
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_aCiencia-Investigación _9175010 |
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_c1157 _dArturo Martínez Simental |
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