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| 040 | |a Sistema de Bibliotecas de la Universidad de Panamá | ||
| 041 | 1 | |a spa | |
| 100 | 2 | 1 | |a Gerstein, Mark |
| 245 | 1 | 0 | |a EL AGUA Y LAS MOLECULAS DE LA VIDA |c / ene. 1999 |c / Mark Gerstein |a p.58-63 |
| 650 | 2 | 4 | |a AGUA |
| 650 | 2 | 4 | |a MOLECULAS |
| 773 | 1 | |a Scientific American (Edición en Español) . -- No.268 | |
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