Peiriannau rhyfeddol /
Good, Keith.
Scrivens, Tim.
London : Evans Brothers,
2003, c1999.
Argraffiad Saesneg gwreiddiol = Original English edition : London : Evans Brothers, 1999.
Addasiad Cymraeg gan = Welsh adaptation by : Araul.
Yn cynnwys mynegai = Includes index.
Machine design
Design