Iaith, cynllunio a thai yng Ngwynedd
Subtitle: memorandwm atodol a gyflwynwyd  i'r Gwir Anrhydeddus Peter Walker, A.S., Ysgrifennydd Gwladol Cymru,  ar ei ymweliad â Chaernarfon 20 Mehefin, 1989 = Language, planning  and housing in Gwynedd : a supplementary memorandum presented to the  Right Hon. Peter Walker M.P., Secretary of State for Wales on his  visit to Caernarfon 20 June 1989.
Publisher: Yr adran = The department
Published: 1989
Place of publication: Caernarfon
Language: wel
Notes: Text in Welsh and English.