M.W.S.G /
McNaughton, Colin.
Williams, Dylan.
Aberystwyth : Cymdeithas Lyfrau Ceredigion,
2002.
Addasiad Cymraeg gan = Welsh adaptation by : Dylan Williams.
Argraffiad Saesneg gwreiddiol = Original English edition : London : Andersen Press, 2001.
Swine
Wolves