The four-fold way

Revision	When	Who	Comment

18	March 8, 2023	MARC Bot	import existing book
17	December 24, 2021	ImportBot	import existing book
16	May 8, 2021	ImportBot	import existing book
15	March 3, 2021	MARC Bot	import existing book
14	November 13, 2020	MARC Bot	import existing book
13	July 27, 2020	MARC Bot	import existing book
12	May 19, 2019	MARC Bot	import existing book
11	September 7, 2011	ImportBot	import new book
10	September 3, 2011	ImportBot	add Internet Archive box ID
9	August 5, 2011	ImportBot	import new book
8	April 26, 2011	OCLC Bot	Added OCLC numbers.
7	July 31, 2010	IdentifierBot	added LibraryThing ID
6	April 16, 2010	bgimpertBot	Added goodreads ID.
5	April 13, 2010	Open Library Bot	Linked existing covers to the edition.
4	December 12, 2009	WorkBot	link works
3	June 9, 2009	ImportBot	Found a matching record from marc_nuls .
2	October 31, 2008	ImportBot	add URIs from original MARC record
1	April 1, 2008		Imported from Scriblio MARC record.