Crystyn
By: Mair Wynn Hughes ; [lluniau gan Rod Knipping] ; [addaswyd y stori hon gan Mari Tudor].
Contributors: Knipping, Rod.; Tudor, Mari.; National Language Unit of Wales.; Welsh Joint Education Committee.
Publisher: CBAC
Published: 1997
Place of publication: Caerdydd
Language: wel
Number of pages: 12
Subjects: Welsh language -- Readers.; Dogs -- Juvenile fiction.