Y dwsin drwg
By: Tony Bradman ; lluniau: Karen Donnelly ; addasiad: Meleri Wyn James
Contributors: James, Meleri Wyn; Donnelly, Karen
Series: Cyfres yr Hebog; Cyfres yr Hebog
Publisher: Gomer
Published: 2009
Place of publication: Llandysul
Language: wel
Number of pages: 56
ISBN-13: 9781848510746
Subjects: Friendship; Juvenile fiction
Work titles: Dirty dozen
Notes: Cyhoeddwyd yn wreiddiol = Originally published: Edinburgh: Barrington Stoke, 2006.

Addasiad Cymraeg o = Welsh adaptation of: The dirty dozen.