Arg Saesneg gwreiddiol = Original English ed: London: Usborne, 1984.
Testun tu mewn i'r clawr cefn = Text inside back cover.
Tyfu pethau by Angela Wilkes. ISBN 0948930160. Published by Cymdeithas Lyfrau Ceredigion in 1992. Publication and catalogue information, links to buy online and reader comments.