growth of basic mathematical and scientific concepts in children
By: by K. Lovell; foreword by Ba rbel Inhelder.
Edition: 5th ed., 2nd impression.
Series: Unibooks
Publisher: University of London P.
Published: 1966
Place of publication: London
Language: eng
Number of pages: 158
Subjects: Number concept.; Conservation (Psychology); Child development.
Notes: Includes bibliographies.