Y byd eang /
Waugh, David.
Williams, Howard.
Jones, Berwyn Prys.
Welsh Joint Education Committee.
Llandysul : Gomer,
2005.
Argraffiad Saesneg gwreiddiol = Original English edition : Cheltenham : Nelson Thornes, 1998.
Addasiad Cymraeg gan Howard Williams a Berwyn Prys Jones = Welsh adaptation by Howard Williams and Berwyn Prys Jones.
Yn cynnwys mynegai = Includes index.
Geography