Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Coal Board Summer School, lecture notes
A case study and two papers presented at the National Coal Board Summer School, Oxford, 1956. Case study titled 'Manpower Wastage', and lectures titled 'Research and Efficiency of Production' by Dr Idris Jones, Director General of Research, and 'The Challenge of Technical Change' by J. Latham C.B.E. Deputy CHairman.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.