Castle Publications

year of publication	ISBN	author(s)	title
1988	978-1-871354-00-3	John May	The Twentieth Century Welsh Quiz Book
1989	978-1-871354-01-0	John May	Year Book of Welsh Dates
2003	978-1-871354-09-6	''	Rhondda 1203-2003: The Story of the Two Valleys