The compendium of American railroad radio frequencies

Revision	When	Who	Comment

6	May 27, 2022	ImportBot	import existing book
5	November 14, 2020	MARC Bot	import existing book
4	November 28, 2012	AnandBot	Fixed spam edits.
3	November 23, 2012	188.190.125.71	Edited without comment.
2	December 4, 2010	Open Library Bot	Added subjects from MARC records.
1	December 9, 2009	WorkBot	add works page