Simsan /
Grindley, Sally.
Hedd ap Emlyn.
Non ap Emlyn.
Curless, Allan.
Caerdydd : Dref Wen,
1996.
Arg. Saesneg cyntaf = First English ed.: Hove: Macdonald Young Books, 1996
Addasiad Cymraeg gan = Welsh adaptation by: Hedd a Non ap Emlyn