Dirgelwch y Teigr
Subtitle: llyfrau Tryfan Llanrwst
By: gan Betsan Jones.
Contributors: Jones, Idwal.
Publisher: Llyfrfa'r Methodistiaid Calfinaidd
Published: 1967
Place of publication: Caernarvon
Language: eng
Number of pages: 171
Notes: Based on the radio serial 'S.O.S, Galw Gari Tryfan', by Idwal Jones.