Ch-chwyrnu!
By: Michael Rosen ; lluniau gan Jonathan Langley ; trosiad gan Gwynne Williams.
Contributors: Langley, Jonathan, 1952-
Publisher: Gwasg y Dref Wen
Published: 1999
Place of publication: Caerdydd
Language: wel
Number of pages: 26
Subjects: Animals -- Juvenile fiction.; Snoring -- Juvenile fiction.
Work titles: Snore!.
Notes: Arg. Saesneg gwreiddiol = Original English ed.: London : HarperCollins Publishers Ltd, 1998.

Addasiad Cymraeg gan = Welsh adaptation by: Gwynne Williams.

Addasiad Cymraeg o = Welsh adaptation of: Snore!.