Luces y sombras de una aventura escolar
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Abstract
Alumnos y maestros realizan un viaje de estudios no exento de incidencias a las profundidades de la tierra y de su prehistoria.
Students and teachers realize a trip to the depths of Earth and the prehistory, not exented of incidences.
Students and teachers realize a trip to the depths of Earth and the prehistory, not exented of incidences.







