- 1David Gwyn
Welsh slate : archaeology and history of an industry
Aberystwyth: Royal Commission on the Ancient & Historical Monuments of Wales 2015; 291 S. : zahlr. Ill., Kt.
Schiefertafelindustrie; Wales - 2Geoffrey D. Hay; Geoffrey P. Stell
Monuments of industry : an illustrated historical record
Glasgow: Royal Commission on the Ancient and Historical Monuments of Scotland 1986; XII, 248 Seiten; Illustrationen
Schottland; Industriearchäologie; Technik; Geschichte