Adroddiad ar ddatblygiad y Gymraeg ac o weithrediad y polisi iaith  yn ysgolion cynradd ac uwchradd Gwynedd 1988-89 =
Subtitle: Report on the development of the Welsh language and on the implementation of the  language policy in the primary and secondary schools of Gwynedd 1988-89.
Publisher: [The department = Yr adran?]
Published: 1990
Place of publication: [Caernarfon?]
Language: eng
Number of pages: 25
Notes: Welsh and English text = Testyn Cymraeg a Saesneg.