Trigonometry

Revision	When	Who	Comment

10	February 13, 2020	MARC Bot	remove fake subjects
9	February 24, 2013	Ben Companjen	Added authors to work
8	November 28, 2012	AnandBot	Fixed spam edits.
7	November 23, 2012	188.190.124.70	Edited without comment.
6	February 10, 2011	EdwardBot	add lending subjects
5	January 25, 2011	ImportBot	add subjects from new record
4	April 28, 2010	Open Library Bot	Linked existing covers to the work.
3	January 31, 2010	WorkBot	add more information to works
2	October 23, 2009	WorkBot	add subjects to works
1	October 8, 2009	WorkBot	create work page