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Arg. Saesneg gwreiddiol = Original English ed.: Cambridge: Cambridge University Press, 1996.
Addasiad Cymraeg gan = Welsh adaptation by: W.J. Jones.
Cyhoeddwyd dan nawdd Cynllun Llyfrau Darllen Cyd-bwyllgor Addysg Cymru = Published under the auspices of the Welsh Joint Education Committee Reading Book scheme.
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Deinosor by Meredith Hooper. ISBN 0861742265. Published by Gwasg Addysgol Drake in 1998. Publication and catalogue information, links to buy online and reader comments.