The development of conservation and differentiation of number.
Series: Monographs of the Society for Research in Child Development,; v. 31, no. 6, serial no. 108
Publisher: Published by the University of Chicago Press for the Society for Research in Child Development]
Published: 1966
Place of publication: [Chicago
Language: eng
Number of pages: 46
Subjects: Number concept
Notes: Bibliography: p. [45]-46.