Addasiad Cymraeg = Welsh adaptation: Nia Rhosier a Rwth Tomos.
Teitl clawr = Cover title.
Yr Efengyl a'r ymdrech dros heddwch : Seminar hyfforddi mewn didreisedd efengylaidd a ffyrdd o'i weithredu by Jean Goss-Mayr. Published by Gwasg Santes Melangell in 1996. Publication and catalogue information, links to buy online and reader comments.