Library of Congress subject headings

Revision	When	Who	Comment

7	December 20, 2023	ImportBot	import existing book
6	December 15, 2022	MARC Bot	import existing book
5	September 15, 2021	ImportBot	import existing book
4	December 4, 2010	Open Library Bot	Added subjects from MARC records.
3	April 28, 2010	Open Library Bot	Linked existing covers to the work.
2	February 6, 2010	WorkBot	add more information to works
1	December 10, 2009	WorkBot	add works page