'A oes dyfodol i'r iaith Gymraeg?', erthygl gan Kate Roberts,
'A oes dyfodol i'r iaith Gymraeg?', erthygl gan Kate Roberts,
A Peace Aims Declaration,
A Peace Aims Declaration,
A Plan for Local Broadcasting in Britain,
A Plan for Local Broadcasting in Britain,
'A question of loyalties', drama mewn tair act gan I Whittington,
'A question of loyalties', drama mewn tair act gan I Whittington,
A Record of Achievement, the Work of the National Government 1949-1957,
A Record of Achievement, the Work of the National Government 1949-1957,
A School of Veterinary Science for Wales,
A School of Veterinary Science for Wales,
A. W. Wade-Evans, Further remarks on the "de excidio",
A. W. Wade-Evans, Further remarks on the "de excidio",
A. W. Wade-Evans, T. Jones Pierce, Ceinwen Thomas, A. O. H. Jarman, D. Gwenallt Jones a Gwynfor Evans, Seiliau Hanesyddol ...,
A. W. Wade-Evans, T. Jones Pierce, Ceinwen Thomas, A. O. H. Jarman, D. Gwenallt Jones a Gwynfor Evans, Seiliau Hanesyddol ...,
Aberafan ac Ogwr,
Aberafan ac Ogwr,
Aberdâr,
Aberdâr,
Aberdare Leader - County Times (21 ffeil),
Aberdare Leader - County Times (21 ffeil),
Aberdyfi,
Aberdyfi,
Abertawe - Canol Caerdydd. (7 ffeil),
Abertawe - Canol Caerdydd. (7 ffeil),
Abertawe a Gwyr,
Abertawe a Gwyr,
Abertawe. (Adnau C1997/22),
Abertawe. (Adnau C1997/22),
Abertawe. Trefniadaeth, etc., yr Ysgol Haf,
Abertawe. Trefniadaeth, etc., yr Ysgol Haf,
Abertawe,
Abertawe,
Accidental War, The Mershon Report,
Accidental War, The Mershon Report,
Achos y Naw,
Achos y Naw,
'Activity Rates', Ymchwil No. 4. (5 copi),
'Activity Rates', Ymchwil No. 4. (5 copi),
