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| 100 | 1 | _aLuiz Cervo, Amado | |
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_aMetodología científica / _cpor Amado Luiz Cervo, Pedro Alcino Bervian ; tr. y adaptación Juan Guevara Rodríguez, Carlos Bernal Esguerra. |
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_aMéxico : _bMcGraw-Hill Interamericana, _cc1980. |
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_aCiencia _xMetodología _95804 |
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_aAlcino Bervian, Pedro, _ecoaut. |
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| 905 | _aLibro | ||
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