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| 245 | 1 | 0 | _aScientific American presents ... |
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_aNew York, N.Y. : _bScientific American, Inc, _cc1998- |
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| 310 | _aTrimestral | ||
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| 500 | _aRev. don. no vigente BC | ||
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_92357 _aCiencia. |
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_9151441 _aScientific American. |
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