Casgliad byr o Gredoau a Chatecismau Cristnogol, wedi’u cyfieithu a’i golygu gan Eifion Jones sef: Credo’r Apostolion, Credo Nicea, Credo Athanasiws, Catecism Heidelberg, Catecism Byrraf Westminster a Hyfforddwr Thomas Charles.
A short collection of Christian Catechisms and Creeds, translated and edited by Eifion Jones, namely the Creeds of the Apostles, Nicea and Athanasius together with the Heidelberg Catechism, the Westminster Shorter Catechism and Thomas Charles' 'Christian Instructor'.
