Ar y clawr: Bwrdd yr Iaith Gymraeg = On cover: Welsh Language Board.
Teitl clawr = Cover title.
Cynllun iaith Gymraeg : paratowyd o dan Ddeddf yr Iaith Gymraeg 1993. Published by Swyddfa'r Post in 1997. Publication and catalogue information, links to buy online and reader comments.