Logical thinking in children research based on Piaget's theory

Xehetasun bibliografikoak
Egile nagusia:	Sigel, Irving E.
Beste egile batzuk:	Hooper, Frank H., Piaget, Jean 1896-
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	New York Holt, Rinehart and Winston [c1968]
Gaiak:	Piaget, Jean > 1896-. Conservation of substance (Psychology) Child psychology.