The Stage IV Error in Piaget's Theory of Object Concept Development: Difficulties in Object Conceptualization or Spatial Localization?

Autor:	Evans, Wilson F., Gratch, Gerald
Zdroj:	Child Development, 1972 Jun 01. 43(2), 682-688.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1127567 Zobrazit plný text záznamu