Ynni: ffeil seneddol/Energy: parliamentary file
Ynni: ffeil seneddol/Energy: parliamentary file
Ymgyrch deledu Gwynfor Evans dros S4C/Gwynfor Evans's television campaign for S4C
Ymgyrch deledu Gwynfor Evans dros S4C/Gwynfor Evans's television campaign for S4C
Y wasg/Press
Y wasg/Press
Y wasg a darlledu/the press and broadcasting
Y wasg a darlledu/the press and broadcasting
Y Swyddfa Gymreig a chyrff y llywodraeth/the Welsh Office and governmental bodies
Y Swyddfa Gymreig a chyrff y llywodraeth/the Welsh Office and governmental bodies
W. T. Pennar Davies
W. T. Pennar Davies
Unol Daleithiau/United States
Unol Daleithiau/United States
Undebaeth lafur/Trades unionism
Undebaeth lafur/Trades unionism
Trysorlys/Treasury
Trysorlys/Treasury
Tramor: ffeil seneddol/Foreign affairs: parliamentary file
Tramor: ffeil seneddol/Foreign affairs: parliamentary file
Trafnidiaeth/Transport
Trafnidiaeth/Transport
Trafnidiaeth: ffeil seneddol/Transport: parliamentary file
Trafnidiaeth: ffeil seneddol/Transport: parliamentary file
Torion papur amrywiol/Miscellaneous press cuttings
Torion papur amrywiol/Miscellaneous press cuttings
Torion o'r wasg/Press cuttings
Torion o'r wasg/Press cuttings
Teledu a radio/Television and radio
Teledu a radio/Television and radio
Swyddfa Gymreig: iechyd/the Welsh Office: health
Swyddfa Gymreig: iechyd/the Welsh Office: health
Swyddfa Gymreig: ffyrdd/the Welsh Office: roads
Swyddfa Gymreig: ffyrdd/the Welsh Office: roads
Swyddfa Gymreig: amrywiol/Welsh Office: miscellanea
Swyddfa Gymreig: amrywiol/Welsh Office: miscellanea
Swyddfa Gymreig: Addysg/Welsh Office: Education
Swyddfa Gymreig: Addysg/Welsh Office: Education
