Cyhoeddiad Saesneg gwreiddiol = Original English ed.: London: HarperCollins, 1996.
Yn cynnwys mynegai = Includes index.
Addasiad Cymraeg gan = Welsh adaptation by: Siân Lewis.
Teitl clawr = Cover title.
Wedi ei dyllu ar gyfer ei gynnwys mewn ffeil fodrwy = Perforated for inclusion in ring binder.
Dirgelion y byd. ISBN 185902405X. Published by Gomer in 1996. Publication and catalogue information, links to buy online and reader comments.