| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1968 | 978-0-901337-00-9 | Caernarvonshire County Record Office | Caernarvonshire records: The Caernarvonshire Record Office, twenty-one years 1947-1968; a catalogue of an exhibition held at Caernarvon, 19-26 October 1968 |
| 1986 | 978-0-901337-42-9 | Alan Holmes | Slates from Abergynolwyn: the story of Bryneglwys slate quarry |
| 1988 | 978-0-901337-47-4 | Lewis Lloyd | Australians from Wales |
| 1989 | 978-0-901337-50-4 | Eric Jones | Dolgarrog: An industrial history |
| 1999 | 978-0-901337-73-3 | A.T. Holmes ยท R. Thomas | Slates from Abergynolwyn: The Story of the Bryneglwys Slate Quarry |