Arg. Saesneg gwreiddiol = Original English ed.: Llundain: Andersen Press, 1999.
Addasiad Cymraeg gan = Welsh adaptation by: Dylan Williams.
Shh! : (paid a dweud wrth Mister Blaidd) by Colin McNaughton. ISBN 1902416139. Published by Cymdeithas Lyfrau Ceredigion in 1999. Publication and catalogue information, links to buy online and reader comments.