Piaget's theory of intellectual development

Revision	When	Who	Comment

9	September 28, 2021	ImportBot	import existing book
8	August 27, 2020	ImportBot	import existing book
7	August 20, 2020	ImportBot	import existing book
6	January 13, 2020	Bryan Tyson	Edited without comment.
5	January 13, 2020	Bryan Tyson	Added new cover
4	January 13, 2020	Bryan Tyson	Edited without comment.
3	August 18, 2010	IdentifierBot	added LibraryThing ID
2	December 15, 2009	WorkBot	link works
1	October 21, 2008	ImportBot	Imported from Talis MARC record.