Flavell, John H.
The developmental psychology of Jean Piaget / John H. Flavell, with a foreword by Jean Piaget. - New York : Van Nostrand Reinhold, 1963. - 472 p. : ill. - The University series in psychology .
Piaget, Jean, 1896-
Intellect.
The developmental psychology of Jean Piaget / John H. Flavell, with a foreword by Jean Piaget. - New York : Van Nostrand Reinhold, 1963. - 472 p. : ill. - The University series in psychology .
Piaget, Jean, 1896-
Intellect.