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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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10 feb 1919 anni - Desarrolla su Teoría "La naturaleza del conocimiento"
Aggiunto al nastro di tempo:
Jean Piaget
By
Emma Muñoz
14 ott 2018
0
0
517
Data:
10 feb 1919 anni
Adesso
~ 106 years ago
Immagini:
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