Y pencampwr gan bencampwr.
Series: Balchder
Publisher: Child's Play (International)
Published: 1991
Place of publication: Swindon
Language: wel
Work titles: The champion by a champion. Welsh.
Notes: Arg Saesneg gwreiddiol = Original English ed: 1990.

Teitl clawr = Cover title.

Testun ar y cloriau = Text on inside covers.

Cyfieithiad o = Translation of: The champion by a champion.