Children from 5 to 7. Some aspects of the number concept.
By: [By] B. R. Hamel. Foreword by J. de Wit.
Series: Studies in developmental psychology,; v. 1
Publisher: Rotterdam University Press
Published: 1974
Place of publication: [Rotterdam]
Language: eng
Number of pages: 91
Subjects: Conservation (Psychology); Number concept in children.
Notes: Bibliography: p. 86-89.