Syniad da gwenlli gŵydd /
Coplans, Peta.
Williams, Dylan.
Aberystwyth : Cymdeithas Lyfrau Ceredigion,
2004.
Argraffiad Saesneg gwreiddiol = Original English edition : London : Andersen Press, 2004.
Addasiad Cymraeg gan = Welsh adaptation by : Dylan Williams.
Geese
Frogs