New light on children's ideas of number : the work of professor Piaget /

• Main Author: Isaacs, Nathan 1895-1966 (συγγραφέας)
• Format: Book
• Language: English
• Published: London : Ward Lock Educational, 1960 [reprinted 1972]
• Subjects: Piaget, Jean, > 1896-1980; Παιδική ψυχολογία