Autor: R.G. Richmond

First published in 2006. Professor Jean Piaget is most widely known as a child psychologist; nevertheless he is also a zoologist, a mathematician, and a philosopher; but perhaps, above all, he is a g …

First published in 2006. Professor Jean Piaget is most widely known as a child psychologist; nevertheless he is also a zoologist, a mathematician, and a philosopher; but perhaps, above all, he is a g …