Cefnogwch ni i ddatblygu ein casgliadau a'n gwasanaethau ar gyfer cenedlaethau'r dyfodol.
| Teitl | Cyfrol | Blwyddyn |
|---|---|---|
| Anglesey Antiquarian Society and Field Club Transactions | Mynegai: 1913-1985 | 1913-1914, 1920-2011 |
| Anglesey Antiquarian Society and Field Club Transactions | Reports | 1911-1916 |
| Anglesey Antiquarian Society and Field Club Transactions (Mynegai) | Supplements | 1915, 1924, 1927 |
| Archaeologia Cambrensis | 1st Series: Vol 1-4, 2nd Series: Vol 1-5, 3rd Series: Vol 1-15, 4th Series: Vol. 1-15, 5th Series: Vol 1-17, 6th Series: Vol 1-20, 7th Series: Vol 1-8. Vol. 84-159. mynegai: 1846-1980 | 1846-2011 |
| Bathafarn | 31 | 2000 |
| Y Beirniad | 1-8 | 1911-1920 |
| Brycheiniog | 1-43 (Vol. 30 yn cynnwys mynegai) | 1955-2012 |
| Bulletin of the Board of Celtic Studies | 1-40 | 1921-1993 |
| Bye-Gones (Cyfres Newydd) | 1-13 | 1889-1919 |
| Index to Bye-Gones | 1-7 | 1871-1888 |
| Bye-Gones (Cyfres Newydd) | 1-7 | 1925-1939 |
| Trafodion Cymdeithas Hanes Sir Gaernarfon | 1-73, Mynegai: 1-24 | 1939-2012 |
| Cambria: a journal of Adult education & Social Service in Wales | 1-9 | 1930-1933 |
| Cambria: a Welsh Geographical Review | 1-16 | 1974-1991 |
| The Cambrian Law Review | 1-42 | 1970-2011 |
| Cambridge Medieval Celtic Studies | 1-33, 35-52, 59-64 | 1981-2006, 2010-2012 |
| Canu Gwerin | 1-35 | 1978-2012 |
| The Carmarthen Antiquary | 1-48 | 1941-2012 |
| Carmarthenshire Historian | 3-20 | 1966-1985 |
| Celtica | 1-26 | 1950-2010 |
| Y Cerddor | 1-6, 14-33 (vol. 7-10 ar goll) | 1889-1921 |
| Ceredigion | 1-12, 14-16:4, Mynegai: 1-10 (vol.13 ar goll) | 1950-2012 |
| Cof Cenedl | 1-24 | 1896-2009 |
| Contemporary Wales | 1-25 | 1987-2012 |
| Cylchgrawn Cymdeithas Alawon Gwerin Cymru | 1-5 | 1909-1977 |
| Trafodion Cymdeithas Hanes Bedyddwyr Cymru | 1906-1914, 1916-1935, 1937-1987, 1989-201 | |
| Cymdeithas Hanes y Methodistiaid Calfiniaidd - Cyfres Newydd | 1-36, Mynegai: 1-24 | 1977-2012 |
| Cylchgrawn Cymdeithas Hanes Y Methodistiaid Calfiniaidd | 1-60, 1-23, 26-33 | 1916-76 |
| Cylchgrawn Cymdeithas Hanes Sir Ddinbych | 1-53, 56-61, Mynegai: 1-40 | 1952-2004, 2008-2013 |
| Cymdeithas Hanes a Chyfnodion Sir Feirionydd | 1-16:3 | 1949-2012 |
| Y Cymmrodor | 1-49 | 1877-1949 |
| Cymmrodorion Record Series | 1-4, 6-13 | |
| Transactions of the Honourable Society of Cymmrodorion | 1822-2012 | |
| Cymru | 1-72 | 1891-1927 |
| Cymru a'r Mor | 1-33 | 1976-2012 |
| Diwynyddiaeth | 1-62 | 1964-2011 |
| Dock Leaves / Anglo-Welsh review | 1-88 | 1949-1988 |
| Y Drysorfa | 52-55, 71-89, 91-138 | 1882-1885, 1908-1919, 1921-1968 |
| Dwned | 1-18 | 1995-2012 |
| Y Cylchgrawn Efengylaidd | 1-18 (newid maint i 4to) | 1948-1980 |
| Efrydiau Athronyddol | 61-69 | 1998-2006 |
| Yr Efrydydd | 1-2 | 1920-1922 |
| Yr Efrydydd: Cyfres newydd | 1-11 | 1924-1935 |
| Yr Efrydydd: 3ydd gyfres | 1-10 | 1935-1948 |
| Flintshire Historical Society | 9, 13-15, 24-26, 30-32, 36-39 | -2012 |
| Folk Life | 1-50:2 | 1963-2012 |
| Y Genhinen | 1883-1889, 1905-1907, 1911-1921, 1924-1928 | |
| Y Genhinen | 1-29 | 1950-1980 |
| Y Genhinen | 1-29 | 1950-1980 |
| Gower | 50-63 | 1999-2012 |
| Gwent Local History | 62-113 | 1987-1991, 2002-2013 |
| Hanes Cerddoriaeth Cymru | 1-7 | 1996-2007 |
| Historical Society of the Church in Wales | 1-26, 32 | 1946-1979, 1990 |
| Historical Society of West Wales, Transactions of | 2-14 | 1912-1929 |
| Llafur | 1-11:1 | 1972-2012 |
| Llen Cymru | 1-35 | 1950-2012 |
| Y Llyfr yng Nghymru | 1-8 | 1998-2007 |
| Cylchgrawn Llyfrgell Genedlaethol Cymru | 31-34 | 1999-2006 |
| Minerva Journal of Swansea History | 8-14 | 2000-2006 |
| Montgomeryshire Collections | 1-100 & Mynegai: 75-85 | 1994-1996, 2000-2012 |
| Morgannwg | 43-56 | 1999-20012 |
| The New Welsh Review | 1-100 | 1988-2013 |
| Planet | 1-211 + Mynegai: 1-100 | 1970-2013 |
| Poetry Wales | 1-48:2 | 1965-2012 |
| The Powys Review | 1-28, 31-32 + Mynegai: 1-26 | 1977-2000 |
| Transactions of the Radnorshire Society | 69-76, 79-81 | 1998-2006, 2009-2011 |
| Red Dragon | 1-11 | 1882-1887 |
| Studia Celtica | 1-46 | 1966-2012 |
| Taliesin | 1-146 + Mynegai: 1-39 | 1859-2012 |
| Y Traethodydd | 1-168 | 1845-2013 |
| Trivium | 1-20, 26-35, 39 | 1966-2004, 2010 |
| Tu Chwith | 1-39 | 1993-2013 |
| Wales | 1-6 + Mynegai: 1-6 | 1911-1914 |
| Wales (O.M.Edwards) | 1-4 | 1894-1897 |
| Welsh Anvil/ Yr Einion | 1-8 | 1949- |
| Welsh History Review | 1-26:3 | 1960-2013 |
| Welsh Journal of Agriculture | 1-18 | 1925-1945 |
| Welsh Music | 1-9 + Mynegai: 1-9 (newid maint i 4to) | 1959-1997 |
| Welsh Religious History, Journal of | 7-8, CN 1-5 (newid teitl i Welsh Journal of Religious History yn 2006) | 1999-2000, 2001-2005 |
| Welsh Review | 1-7 | 1939-1948 |
| Welsh Writing in English | 1-11 | 1995-2007 |
| Young Wales | 5-9 | 1899-1903 |