Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
British Coal
Diwydiant
British Coal Outburst of Coal and Firedamp Code of Precautions (booklet)
Publisher: British Coal
(1988)
2018.150/2
Diwydiant
Health-related Aspects of Water Treatment in British Coal
Production: British Coal
(1989)
2011.64/3
Diwydiant
British Coal South Wales Oakdale Colliery (fact sheet)
Publisher: British Coal
(1980s)
1999.120/4
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