Eirth /
Bour, Laura.
Williams, Alwena.
Gallimard Jeunesse (Publisher)
Caerdydd : Gwasg Addysgol Drake,
1993.
Arg. Ffrangeg gwreiddiol = Original French ed: Paris: Editions Gallimard: 1991
Arg. Saesneg gwreiddiol = Original English ed: London: Moonlight, 1992
Bears