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Showing results for ( Publisher equals Gwasg Carreg Gwalch ):
Publications (Library)
| Title | Contributors | Publisher | Year | Medium |
| Gazeteer of the Welsh slate industry | Richards, Alun John | Gwasg Carreg Gwalch | 1991 | Book |
| Slate quarrying at Corris | Richards, Alun John | Gwasg Carreg Gwalch | 1994 | Book |
| Slate railways of Wales | Richards, Alun John | Gwasg Carreg Gwalch | 2001 | Book |
| Fragments of mine & mill in Wales | Richards, Alun John | Gwasg Carreg Gwalch | 2002 | Book |