| Teitl | Awdur | Blwyddyn | Iaith | Cyhoeddwr |
| Voice From the Valleys | Phil Williams | 1981 | S | Plaid Cymru |
| Gwynfor Evans | Pennar Davies | 1976 | C | Tŷ John Penry |
| Rhagom i Ryddid | Gwynfor Evans | 1964 | C | Plaid Cymru |
| A National Future for Wales | Gwynfor Evans | 1975 | S | Plaid Cymru |
| Triwyr Penllyn | Gwynedd Pierce | 1960 | C | Plaid Cymru |
| Cymru’n Deffro | John Davies | 1981 | C | Y Lolfa |
| Tân yn Llŷn | Dafydd Jenkins | 1937 | C | Gwasg Aberystwyth |
| Wales a Nation Again | P. Berresfod Ellis | 1968 | S | Tandem |
| O Ddifri 1 | Dafydd Wigley | 1992 | C | Gwasg Gwynedd |
| Dal Ati 2 | Dafydd Wigley | 1993 | C | Gwasg Gwynedd |
| Wales Can Win | Gwynfor Evans | 1973 | S | Christopher Davies, Llandybie |
| The Story of Plaid Cymru | Dafydd Williams | 1990 | S | Plaid Cymru |
| Aros Mae | Gwynfor Evans | 1971 | C | Gwasg John Penry, Abertawe |
| Seiliau Hanesyddol Cenedlaetholdeb Cymru | Chwech Darlith | 1950 | C | Plaid Cymru |
| The Historical Basis of Welsh Nationalism | Six Lectures | 1950 | S | Plaid Cymru |
| Seiri Cenedl | Gwynfor Evans | 1986 | C | Gwasg Gomer |
| Tros Gymru J.E. a’r Blaid | J. E. Jones | 1970 | C | Gwasg John Penry, Abertawe |
| Geiriau Gwynfor | Peter Hughes Griffiths | 2006 | C | Y Lolfa |
| Towards Welsh Freedom | Dr D J Davies | 1958 | S | Plaid Cymru |
| Gwynfor. Rhag pob brad | Rhys Evans | 2005 | C | Y Lolfa |
| The Fight for Welsh Freedom | Gwynfor Evans | 2000 | S | Y Lolfa |
| Welsh and Scottish Nationalism A Study | Sir Reginald Coupland | 1954 | S | Collins |
| When Was Wales? | Gwyn A. Williams | 1985 | S | Penguin Books |
| Rebirth of a Nation 1880 – 1980 | Kenneth O. Morgan | 1981 | S | Oxford University Press. University of Wales Press |
| The Welsh Nationalist Party 1925 – 45 A Call to Nationhood |
D.Hywel Davies | 1983 | S | University of Wales Press, and St Martin’s Press, New York |
| Welsh Nationalism in the Twentieth Century, The Ethnic Option and the Modern State |
Charlotte Aull Davies | 1989 | S | Praeger |
| Plaid Cymru. The Emergence of a Political Party | Laura McAllister | 2001 | S | Seren |
| Plaid Cymru . An Ideological Analysis | Alan Sandry | 2011 | S | Welsh Academic Press |
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