The Sign of Four

Revision	When	Who	Comment

12	September 20, 2024	ImportBot	import existing book
11	March 6, 2023	AgentSapphire	Merge works
10	November 15, 2022	ImportBot	import existing book
9	June 8, 2011	OCLC Bot	Added OCLC numbers.
8	August 10, 2010	IdentifierBot	added LibraryThing ID
7	August 9, 2010	WorkBot	merge works
6	April 24, 2010	Open Library Bot	Fixed duplicate goodreads IDs.
5	April 16, 2010	bgimpertBot	Added goodreads ID.
4	April 14, 2010	Open Library Bot	Linked existing covers to the edition.
3	October 24, 2009	WorkBot	add edition to work page
2	January 9, 2009	EdwardBot	merge author
1	April 30, 2008		Imported from amazon.com record