Arg. Saesneg gwreiddiol = Original English ed.: London: Collins Educational, 1993.
Yn cynnwys mynegai = Includes index.
Addasiad Cymraeg gan = Welsh adaptation by: Ken a Sian Owen.
Teitl clawr = Cover title.
Trydan a magnetedd by Lesley Newson. ISBN 185596225X. Published by Dref Wen in 1996. Publication and catalogue information, links to buy online and reader comments.