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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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9 abr 1954 ano - Piaget estudia la resolución de problemas con sus hijos.
Adicionado na linha do tempo:
Historia de la psicología. siglo xx
By
dianap20m@live.com
26 nov 2018
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569
Data:
9 abr 1954 ano
Agora
~ 71 years ago
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