Logical thinking in children; research based on Piaget`s theory /
Sigel, Irving E.
Logical thinking in children; research based on Piaget's theory / edited by Irving E. Sigel and Frank H. Hooper. With foreword by Barbel Inhelder. - New York : Rinehart and Winston, 1968. - xv, 541 p. : ill. ; 24 cm.
Includes bibliographies.
Piaget, Jean, 1896--.
Conservation of substance (Psychology).
Child psychology.
Logical thinking in children; research based on Piaget's theory / edited by Irving E. Sigel and Frank H. Hooper. With foreword by Barbel Inhelder. - New York : Rinehart and Winston, 1968. - xv, 541 p. : ill. ; 24 cm.
Includes bibliographies.
Piaget, Jean, 1896--.
Conservation of substance (Psychology).
Child psychology.