The World Book of study power.

Revision	When	Who	Comment

7	November 17, 2020	MARC Bot	import existing book
6	January 27, 2012	ImportBot	import new book
5	August 12, 2011	ImportBot	add ia_box_id to scanned books
4	July 31, 2010	IdentifierBot	added LibraryThing ID
3	June 4, 2010	ImportBot	Found a matching record from Library of Congress .
2	April 16, 2010	bgimpertBot	Added goodreads ID.
1	April 1, 2008		Imported from Scriblio MARC record.