Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Proceedings of The South Wales Institute Engineers
Proceedings of the South Wales Institute of Engineers, (Embracing the coalfields of South Wales) Volume XCII, 1976-1977, December 1977. 44 pages in paperback cover stapled together at centre.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.