The growth of basic mathematical and scientific concepts in children /
Lovell, K.
The growth of basic mathematical and scientific concepts in children / by K. Lovell. - 5th ed., 2nd impression. - London : University of London Press, 1968. - 158 p. : ill. ; 22 cm. - Unibooks .
Includes bibliographical references
Number concept in children.
Conservation (Psychology).
372.7019
The growth of basic mathematical and scientific concepts in children / by K. Lovell. - 5th ed., 2nd impression. - London : University of London Press, 1968. - 158 p. : ill. ; 22 cm. - Unibooks .
Includes bibliographical references
Number concept in children.
Conservation (Psychology).
372.7019