Ms Swyn ar yr awyr /
Blacker, Terence.
Jones, Rhian Pierce.
Llandysul : Gomer,
2002.
Argraffiad Saesneg gwreiddiol = Original English edition : S.l. : Picadilly, 1990.
Addasiad Cymraeg gan = Welsh adaptation by : Rhian Pierce Jones.
Swyn, Ms. (Fictitious character)