Y griffin a Gwilym ap Huw /
Lawrence, Michael.
Stower, Adam.
Till, Anne K.
Aberystwyth : Cymdeithas Lyfrau Ceredigion Gyf.,
2006.
Argraffiad Saesneg gwreiddiol = Original English edition : London : Orchard Books, 2004.
Addasiad Cymraeg gan = Welsh adaptation by : Anne K. Till.
Griffins
Children's stories, Welsh.