Arg. Saesneg gwreiddiol = Original English ed.: Llundai: Orchard Books, [1998?].
Addasiad Cymraeg gan = Welsh adaptation by: Luned Whelan.
Teitl clawr = Cover title.
Gwenno Gwningen yn yr ysgol feithrin : llyfr lluniau'n newid by Patrick Yee. ISBN 085284221X. Published by Hughes a'i Fab in 1998. Publication and catalogue information, links to buy online and reader comments.