Construction materials for coal conversion

Revision	When	Who	Comment

6	October 28, 2020	MARC Bot	import existing book
5	February 14, 2020	MARC Bot	remove fake subjects
4	February 8, 2011	EdwardBot	add lending subjects
3	January 19, 2011	ImportBot	add subjects from new record
2	December 4, 2010	Open Library Bot	Added subjects from MARC records.
1	December 10, 2009	WorkBot	add works page