Y byd mawr
By: Ian Beck.
Publisher: Hughes a'i Fab
Published: 2001
Place of publication: Caerdydd
Language: wel
Subjects: Welsh language -- Readers.; Vocabulary -- Pictorial works -- Juvenile literature.
Genres: Readers.; Pictorial works; Juvenile literature.
Work titles: Yellow book.
Notes: Llyfr bordyn = Board book.

Testun a lluniau ar y cloriau tu mewn = Text and illustrations on inside covers.

Argraffiad Saesneg gwreiddiol = Original English edition: London : Scholastic, 2000.

Addasiad Cymraeg o = Welsh adaptation of: Yellow book.