Darnau jig-so /
Lambert, David,1959-
National Language Unit of Wales.
Welsh Joint Education Committee.
Caerdydd : Uned Iaith Genedlaethol Cymru CBAC,
1996.
Arg. Saesneg gwreiddiol = Original English ed.: Cambridge, Cambridge University Press, 1992
Addasiad Cymraeg: Uned Iaith Genedlaethol Cymru, CBAC = Welsh adaptation: National Language Unit of Wales, WJEC
Yn cynnwys mynegai = Includes index
Geography