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1 janv. 1919 - Inicia su trabajo en institutos psicológicos de Zurich y París.

Ajouté au bande de temps:

Jean Piaget

ByEmma Muñoz
14 oct. 2018
0
0
517

Date:

1 janv. 1919
Maintenaint
~ Il y a 106 ans

Les images:

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