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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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6 feb 1946 anni - Se difundió su obra "El desarrollo de la noción del tiempo" y "La formación del símbolo en el niño"
Aggiunto al nastro di tempo:
Biografía de Jean Piaget
By
Yenym Tinjaca
2 ott 2017
0
0
770
Data:
6 feb 1946 anni
Adesso
~ 79 years ago
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