Possibility and necessity

Bibliographische Detailangaben
1. Verfasser:	Piaget, Jean 1896-1980
Weitere Verfasser:	Ackermann-Valladao, E.
Format:	Buch
Sprache:	English
Veröffentlicht:	Minneapolis University of Minnesota Press c1987.
Schlagworte:	Possibility > Psychological aspects. Necessity (Philosophy) Reality in children. Cognition in children.