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current | 05:29, 15 September 2008 | ![]() | 1,782 × 1,201 (196 KB) | Dtarazona | {{Information |Description={{es|1=Experimento de condicionamiento en palomas utilizando una caja de Skinner construída artesanalmente. Fotografía demostrativa.}} |Source=trabajo propio (own work) |Author=Dtarazona |Date= |Permission= |
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