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| 040 | |a Sistema de Bibliotecas de la Universidad de Panamá | ||
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| 082 | |a T - 597.8 - Am1 | ||
| 100 | 2 | 1 | |a Amaya de León, Orlando N. |
| 245 | 1 | 0 | |a Influencia de la testosterona en el desarrollo del sistema urogenital en la rana Physalaemus postulosus (Anura |b : Leptodactylidae |c / Orlando N. Amaya de León , José Gabriel Cajar González |
| 260 | |a Panamá |b : Universidad |c , 1981. | ||
| 300 | |a iii, 91 |b : ilus. |c ; 28cm. | ||
| 650 | 2 | 4 | |a RANAS |
| 650 | 2 | 4 | |a HORMONAS |
| 700 | 2 | 1 | |a Cajar González, José Gabriel |
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