Showing 2820 results

Ymchwil.

• PDAG 825-830.
• Series

Part of Archifau Pwyllgor Datblygu Addysg Gymraeg,

Ymddiriedolaethau a phwyllgorau,

• W.
• Series
• 1948-1986.

Part of Papurau T. H. Parry-Williams ac Amy Parry-Williams,

Ymdriniaeth  Gwaith Winnie Parry,

• 260.
• Series
• 1917.

Part of Papurau Winnie Parry,

Ymgyrch arwyddion dwyieithog.

• CH8.
• Series

Part of Papurau Alwyn D. Rees,

Ymgyrch Senedd i Gymru,

• 30-45.
• Series
• 1952-1974.

Part of Elwyn Roberts Papers

Ymgyrch sianel deledu.

• CH10.
• Series

Part of Papurau Alwyn D. Rees,

Ymgyrch y Disg Treth Car.

• CH9.
• Series

Part of Papurau Alwyn D. Rees,

Ymrysonau,

• B388-89.
• Series
• dd.

Part of Papurau Thomas Gwynn Jones

Ymweliadau,

• Blwch 157.
• Series
• 1995-1998.

Part of Papurau Ieuan Wyn Jones

Yn ôl cyfenwau

• 387/7-10 etc.
• Series
• 1891-1954.

Part of Papurau J. W. Jones

Yn ôl ffugenwau etc.

• 347/11-17 etc.
• Series
• 1860-1942.

Part of Papurau J. W. Jones

Yn ôl testunau

• 399/17 etc.
• Series
• 1886-[?1918].

Part of Papurau J. W. Jones

Ynni Niwclear/trydan,

• R3.
• Series
• 1971-91.

Part of Papurau Dafydd Elis Thomas

Yr Adain Chwith,

• C2.
• Series
• 1980-90.

Part of Papurau Dafydd Elis Thomas

Yr ail gyfres,

• 7-12.
• Series
• [1987]-[1991].

Part of Sgriptiau Bethan Phillips,

Yr Amgylchfyd,

• Blwch 99.
• Series
• 1989-1991.

Part of Papurau Ieuan Wyn Jones

Yr Eisteddfod a'r Orsedd,

• 74-90.
• Series
• 1923-64.

Part of Papurau Trefin, Archdderwydd Cymru

Yr Eisteddfod Genedlaethol

• 3
• Series
• 1947-1955

Part of Archif John Eilian

Yr Eisteddfod Genedlaethol.

• CH12.
• Series

Part of Papurau Alwyn D. Rees,

Yr Eisteddfod Genedlaethol - Amryw.

• BOCS 18.
• Series

Part of Papurau Brinli,