Y tywydd /
Kniffke, Sophie.
Bourgoing, Pascale de.
Williams, Alwena.
Gallimard Jeunesse (Publisher)
Caerdydd : Gwasg Addysgol Drake,
1991
Arg Ffrangeg gwreiddiol = Original French ed: Paris: Editions Gallimard, 1989.
Arg Saesneg = English ed: London: Moonlight, 1990.
Cyfieithiad o'r Ffrangeg = Translated from French.
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Science