Guide to the planets

Revision	When	Who	Comment

8	May 29, 2019	Deadeasy	Edited without comment.
7	May 29, 2019	Deadeasy	Added new cover
6	November 28, 2012	AnandBot	Fixed spam edits.
5	November 23, 2012	188.190.127.67	Edited without comment.
4	December 6, 2010	Stephen C	merge authors
3	December 5, 2010	Open Library Bot	Added subjects from MARC records.
2	December 5, 2010	Open Library Bot	Added subjects from MARC records.
1	October 15, 2009	WorkBot	add works page