Child's conception of number /
Piaget, Jean
Child's conception of number / by Jean Piaget - New York : Routledge, 1997. - ix, 248 p. : - Selected works ; .
Includes bibliographical references and index.
0415168880 0415168864 (Set)
Number concept in children.
Cognition in children.
155.4 / PIA
Child's conception of number / by Jean Piaget - New York : Routledge, 1997. - ix, 248 p. : - Selected works ; .
Includes bibliographical references and index.
0415168880 0415168864 (Set)
Number concept in children.
Cognition in children.
155.4 / PIA