Los cuatro acuerdos

Revision	When	Who	Comment

13	December 8, 2022	ImportBot	import existing book
12	January 6, 2022	ImportBot	import existing book
11	September 29, 2021	ImportBot	import existing book
10	December 1, 2020	MARC Bot	import existing book
9	August 16, 2020	ImportBot	import existing book
8	May 20, 2019	MARC Bot	import existing book
7	July 29, 2014	ImportBot	import new book
6	April 6, 2014	ImportBot	Added IA ID.
5	June 23, 2010	IdentifierBot	added LibraryThing ID
4	April 14, 2010	Open Library Bot	Linked existing covers to the edition.
3	April 1, 2010	bgimpertBot	Added goodreads ID.
2	October 13, 2009	WorkBot	add edition to work page
1	April 1, 2008		Imported from Scriblio MARC record.