Jean Piaget smoking pipe (1896-1980). Piaget was a Swiss psychologist who was the first to make a methodical study of the four stages of mental growth in children. He is considered by many to have been a major figure in developmental psychology | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Anderson, Bill |
Taille de l’image : | 2870 px × 3555 px |
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Property Release : | Non requis |
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