Arg. Saesneg gwreiddiol = Original English ed.:Llundain: HarperCollins Publishers ac Addison Wesley Longman Limited, [1993?].
addasiad Cymraeg: Howard Alun Williams.
Ar ben y wyneb ddalen = At head of title page: Collins Longman ar y cyd รข'r Gymdeithas Ddaearyddol.
Atlas adnoddau yr Eidal. ISBN 1860852998. Published by Cyd-Bwyllgor Addysg Cymru in 1998. Publication and catalogue information, links to buy online and reader comments.