Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Coal Board Summer School, lecture notes
Notes from three sessions which took place at the National Coal Board Summer School, Oxford, 1957. Sessions titled 'The Manager's Job', 'Organising Supply of Materials Underground', and 'Colliery Management and the Price of Coal'.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.