Y Gofod
Subtitle: project addysg ddwyieithog (Ysgolion uwchradd).
Contributors: Cymraeg fel Ail Iaith yn yr Ysgol Uwchradd (project)
Publisher: Schools Council
Published: 1981
Place of publication: London
Language: wel
Number of pages: 72
Subjects: Welsh language -- Readers -- Outer space.; Outer space -- Addresses, essays, lectures.