Six Psychological studies /
Piaget Jean.
Six Psychological studies / by Jean Piaget. - ed. - New York : Vintage Books, c1967. - xvii,169 p.
Includes index.
Cognition--Addresses, essays, lectures.
BF311 / .P5213
Six Psychological studies / by Jean Piaget. - ed. - New York : Vintage Books, c1967. - xvii,169 p.
Includes index.
Cognition--Addresses, essays, lectures.
BF311 / .P5213