Arg. Saesneg gwreiddiol = Original English ed.: London: Piccadilly, 1998.
Addasiad Cymraeg gan = Welsh adaptation by: Hedd a Non ap Emlyn.
Ed a Mr Eliffant : cei di weld! by Lisa Stubbs. ISBN 1855963558. Published by Gwasg y Dref Wen in 1998. Publication and catalogue information, links to buy online and reader comments.