Origin of the Idea of Chance in Children (Psychology Revivals)Jean Piaget, Barbel Inhelder · First published 2014Open the Tome
Los senderos de los descubrimientos del ninoBarbel Inhelder, Bärbel Inhelder, Guy Cellérier · First published 1996Open the Tome
The Child's Conception of Space (Norton Library, No. 408)Jean Piaget, Barbel Inhelder · First published 1967Open the Tome
