Llythyrau a chardiau, 1980, a anfonwyd at Gwynfor Evans yn dilyn ei lwyddiant yn darbwyllo'r llywodraeth i ildio dros fater sicrhau S4C fel sianel ar gyfer rhaglenni Cymraeg eu hiaith./Letters and cards, 1980, sent to Gwynfor Evans to congratulate him on his success in persuading the government to back down over designating S4C as the channel reserved for Welsh language television programmes.
Anerchiad Cymreigyddion Caerludd,
A broadside address to the people of Wales from 'Cymreigyddion Caerludd' [i.e. London], dated 22 August 1832, relating to the use of the Welsh language in law courts in Wales and the need for Welsh-speaking bishops, etc.
A copy of Alun R. Jones's typescript work 'Cymreictod y Creunant. Ffactorau sydd wedi dylanwadu ar hynt y Gymraeg yn y Creunant', 1993, relating to the decline of the Welsh language in the village of Creunant, co Glamorgan.
Cyngor Sir Dyfed: dwyieithrwydd/Dyfed County Council: bilingualism
Dyfed (Wales). County Council