Tair ar ddeg
Subtitle: tair ar ddeg o straeon gafalgar [sic] : tair ar ddeg o sefyllfaoedd credadwy
By: golygwyd gan John McLay ; addasiad gan Bethan Mair ac Eiry Miles
Publisher: Rily
Published: 2010
Place of publication: Hengoed
Language: wel
Number of pages: 227
ISBN-13: 9781904357230
Subjects: Welsh Young adult fiction
Work titles: Thirteen. Welsh
Notes: Cyhoeddwyd yn wreiddiol yn Saesneg gan Orchard Books yn 2005 = Published originally in English by Orchard Books in 2005.

Addasiad Cymraeg o = Welsh adaptation of: Thirteen.