Arg Saesneg gwreiddiol = Original English ed: London: Heinemann, 1991.
Addasiad Cymraeg = Welsh adaptation: Dylan Williams.
Teitl clawr = Cover title.
Breuddwydion deinosor by Allan Ahlberg. ISBN 0852841426. Published by Hughes a'i Fab in 1993. Publication and catalogue information, links to buy online and reader comments.