Carys a'r cipiwr /
Blackman, Malorie.
Harley, Kim.
Creunant, Gwenan.
Curriculum and Assessment Authority for Wales.
Caerdydd : Camfa,
1997.
Arg. Saesneg gwreiddiol = Original English ed.: Harlow : Longman Group, 1994.
Addasiad Cymraeg gan = Welsh adaptation by: Gwenan Creunant.
Welsh language