Pwff, pwff, dyma Tomos /
Awdry, Christopher.
Whelan, Luned.
Caerdydd : Hughes a'i Fab,
1997.
Arg. Saesneg gwreiddiol = Original English ed.: London: William Heinemann, 1997
Llyfr bwrdd = Board book
Teitl clawr = Cover title
Addasiad Cymraeg gan = Welsh adaptation by: Luned Whelan
Thomas the Tank Engine (Fictitious character)