Gomer gofod
By: gan Joy Cowley ; darluniwyd gan David Cowe.
Contributors: Cowe, David.; Curriculum Council for Wales.
Series: Story chest
Publisher: Nelson
Published: 1990
Place of publication: Walton-on-Thames
Language: wel
Subjects: Welsh language -- Readers.
Work titles: Countdown.
Notes: Arg Saesneg gwreiddiol = Original English ed: E. J. Arnold, 1982.

Addasiad Cymraeg = Welsh adaptation: Cyngor Cwricwlwm Cymru.

Teitl clawr = Cover title.

Cyfieithiad o = Translation of: Countdown.