Piaget before Piaget /
Vidal, Fernando.
Piaget before Piaget / Fernando Vidal. - Cambridge, Mass. : Harvard University Press, 1994. - XII, 276 p. : ill. ; 24 cm.
0674667166 (alk. paper)
Piaget before Piaget / Fernando Vidal. - Cambridge, Mass. : Harvard University Press, 1994. - XII, 276 p. : ill. ; 24 cm.
0674667166 (alk. paper)