Arg. Saesneg gwreiddiol = Original English ed.: Henderson Publishing, 1993.
Addasiad Cymraeg gan = Welsh adaptation by: Dylan Williams.
Wedi ei dyllu ar gyfer ei gynnwys mewn ffeil fodrwy = Perforated for inclusion in ring binder.
Testun tu mewn i'r clawr blaen = Text inside front cover.
Gwyrdd yw'r gorau by Sarah Allen. ISBN 1859023894. Published by Gomer in 1996. Publication and catalogue information, links to buy online and reader comments.