Structures and materials

Revision	When	Who	Comment

8	December 10, 2022	ImportBot	import existing book
7	April 26, 2011	OCLC Bot	Added OCLC numbers.
6	April 16, 2010	bgimpertBot	Added goodreads ID.
5	April 14, 2010	Open Library Bot	Linked existing covers to the edition.
4	December 14, 2009	WorkBot	link works
3	December 14, 2009	WorkBot	link works
2	September 29, 2009	ImportBot	Found a matching record from Promise Item .
1	April 1, 2008		Imported from Scriblio MARC record.