Gwepsgodyn /
Waddell, Martin.
Robins, Arthur.
Jones, Wil Morus.
Llandysul : Gomer,
2005.
Argraffiad Saesneg gwreiddiol = Original English edition : London : Walker Books, 2002.
Addasiad Cymraeg gan = Welsh adaptation by : Wil Morus Jones.
Bullying
Children's stories, Welsh.