Cynhaliwyd yr oedfa yn y Neuadd Fawr, Aberystwyth, Dydd Sadwrn, Medi'r 1af, 1990 am 2.00 o'r gloch = Celebration held at Great Hall, Aberystwyth, Saturday, September 1st, 1990 at 2.00 o'clock.
Oedfa ddathlu ac ymgysegriad ar achlysur sefydlu CYTÛN, Eglwysi Ynghyd yng Nghymru = An Act of celebration and commitment on the occasion of the inauguration of CYTÛN, Churches Together in Wales. Published by CYTÛN in 1990. Publication and catalogue information, links to buy online and reader comments.