Business cycles and national income.

Revision	When	Who	Comment

9	December 14, 2023	MARC Bot	import existing book
8	September 28, 2020	MARC Bot	import existing book
7	August 2, 2019	ImportBot	import existing book
6	November 15, 2018	MARC Bot	import existing book
5	August 11, 2011	ImportBot	add ia_box_id to scanned books
4	February 24, 2011	EdwardBot	Added new cover
3	November 16, 2010	ImportBot	Found a matching record from harvard_bibliographic_metadata .
2	December 14, 2009	WorkBot	link works
1	April 1, 2008		Imported from Scriblio MARC record.