Piaget's theory of intellectual development :
Ginsburg, Herbert.
Piaget's theory of intellectual development : an introduction/ Herbert Ginsburg and Sylvia Opper. - Englewood Cliffs, N.J. : Prentice-Hall, [1969] - xi, 237 pages : illustrations ; 24 cm. - The Prentice-Hall series in developmental psychology .
Includes bibliographical references.
013493017X
76076312
155.4130924
Piaget's theory of intellectual development : an introduction/ Herbert Ginsburg and Sylvia Opper. - Englewood Cliffs, N.J. : Prentice-Hall, [1969] - xi, 237 pages : illustrations ; 24 cm. - The Prentice-Hall series in developmental psychology .
Includes bibliographical references.
013493017X
76076312
155.4130924