Critical threshold

Revision	When	Who	Comment

10	December 9, 2022	ImportBot	import existing book
9	August 13, 2021	MARC Bot	import existing book
8	August 27, 2017	Uzume	Added new cover
7	April 29, 2011	OCLC Bot	Added OCLC numbers.
6	December 19, 2010	Alan Millar	merge authors
5	August 6, 2010	IdentifierBot	added LibraryThing ID
4	April 24, 2010	Open Library Bot	Fixed duplicate goodreads IDs.
3	April 16, 2010	bgimpertBot	Added goodreads ID.
2	September 11, 2008	RenameBot	fix author name
1	April 29, 2008		Imported from amazon.com record.