Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Some German experiments in the Gasification of Washery Rejects and Pulverised Fuel (booklet)
Information Bulletin No. EG(51)9. '51/44' handwritten beneath bulletin number. 6 pages, a diagram and appendix.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.